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Grav Exposes Password Hashes Leading to privilege escalation

  • Veröffentlicht: 02.12.2025
  • Aktualisiert: 11.10.2026 10:22

Exposure of Password Hashes Leading to privilege escalation

Severity Rating: Medium

Vector: Privilege Escalation

CVE: XXX

CWE: 200 - Exposure of Sensitive Information

CVSS Score: 6.2

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L

Analysis

It was observed that if a users is given read access on the user account management section of the admin panel can view the password hashes of all users, including the admin user. This exposure can potentially lead to privilege escalation if an attacker can crack these password hashes.

An attacker with read access can:

  • View and potentially crack the password hashes.
  • Gain administrative access by cracking the admin password hash.
  • Escalate privileges and compromise the entire admin panel.

Proof of Concept

  1. Give read access to user accounts to a random user as shown in the following figures: grav0 grav2

  2. Log in to the admin panel with an account that has read access to user accounts and navigate to the user account management section.

  3. Go to the admin profile http://127.0.0.1/admin/accounts/users/admin; The password is not display. Try inspecting the page source code as shown in the following figures: grav2-1

    You can see that it match the hash that is in the admin.yaml file : Compare to the hash in database of the admin

  4. Crack the hash as shown in the following figure, the algorithm use here is bcrypt:

grav3

Workarounds

No workaround is currently known

Timeline

2024-07-24 Issue identified

2024-09-27 Vendor contacted

About X41 D-Sec GmbH

X41 is an expert provider for application security services. Having extensive industry experience and expertise in the area of information security, a strong core security team of world class security experts enables X41 to perform premium security services.

Fields of expertise in the area of application security are security centered code reviews, binary reverse engineering and vulnerability discovery. Custom research and IT security consulting and support services are core competencies of X41.

Betroffene Software

Klicken Sie auf eine Technologie, um alle zugehörigen Schwachstellen anzuzeigen.

PlattformPaketAnfällige VersionenBehoben in
Composer-Paket getgrav/grav < 1.8.0-beta.27 1.8.0-beta.27

Verweise

CVSS-Wert 6.2/10
CVSS-Vektor
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L
Schwäche (CWE)
CWE-200, CWE-201
Plattform
Composer
Paket
getgrav/grav
Veröffentlicht
02.12.2025
Aktualisiert
11.10.2026 10:22

Quellen und Lizenzen

OSV / GitHub Advisory Database - GHSA-gq3g-666w-7h85 - CC BY 4.0

Schwachstellenhistorie: getgrav/grav

Alle veröffentlichten Schwachstellen dieses Pakets (Composer-Paket), neueste zuerst. Zeigt, ob es ein einmaliger Ausrutscher ist oder ein Paket, das man im Auge behalten muss.

Alle (99) im Archiv
Einträge insgesamt
99
Erste → letzte
11.2019 09.2026
Ohne Fix
6
In Angriffen ausgenutzt
0

Verteilung nach Schweregrad

  • Kritisch 7
  • Hoch 47
  • Mittel 41
  • Niedrig 4

Veröffentlichungen pro Jahr

Schweregrad:
  1. Grav CMS vulnerable to remote code execution via .zip file upload
    Hoch · 8.8 CVE-2026-72819 < 2.0.13 2.0.13
  2. Grav: Missing admin.super guard on core group blueprint access field allows admin.users operator to escalate to super-admin
    Hoch · 9.1 CVE-2026-75837 < 2.0.14 2.0.14
  3. Grav: Blueprint dynamic-data bare-function branch is denylist-gated and omits error_log, giving arbitrary file write
    Kritisch · 8.8 CVE-2026-75827 < 2.0.15 2.0.15
  4. Grav: detectXss() misses an event-handler attribute after an unpaired quote in an unquoted attribute value, giving stored XSS
    Kritisch · 8.7 CVE-2026-75828 < 2.0.15 2.0.15
  5. Grav: Unauthenticated Path Traversal via Missing Directory-Boundary Check in `plugin-asset-map.php` Static Asset Server (`index.php`)
    Hoch · 5.9 CVE-2026-74907 < 2.0.15 2.0.15
  6. Grav: Path Traversal in MediaUploadTrait::deleteFile() Allows Arbitrary File Deletion
    Hoch · 8.1 CVE-2026-72695 < 2.0.16 2.0.16
  7. Grav: media_directory() Twig function allows filesystem path traversal and file content disclosure from sandboxed page content
    Hoch · 6.5 CVE-2026-72697 < 2.0.16 2.0.16
  8. Grav: UserInterface offsetget/offsetexists allow-listed in Twig sandbox let editor-authored content leak hashed_password and 2FA secrets via offsetGet()
    Hoch · 7.7 CVE-2026-76839 < 2.0.16 2.0.16
  9. Grav: config_denied_paths default list omits `system`, exposing real secrets (e.g. system.cache.redis.password) via the Twig sandbox when config_access is enabled
    Hoch · 7.5 CVE-2026-76846 < 2.0.16 2.0.16
  10. Grav: The system, site, and theme Twig variables bypass the content sandbox entirely and are never covered by config_denied_paths
    Hoch · 6.5 CVE-2026-72698 < 2.0.16 2.0.16
  11. Grav: Path Traversal in ImageMedium::watermark() — arbitrary file disclosure via publicly-cached images
    Hoch CVE-2026-69089 >= 2.0.10, < 2.0.11 2.0.11
  12. Grav: Incomplete callable validation in blueprint dynamic fields allows arbitrary static method invocation and file disclosure
    Hoch · 8.1 CVE-2026-69088 >= 2.0.7, < 2.0.11 2.0.11
  13. Grav: FlexDirectory::dynamicDataField() executes arbitrary callables from blueprint data with no validation
    Hoch · 8.8 CVE-2026-65608 >= 1.7.0, < 2.0.9 2.0.9
  14. Grav: 2FA Bypass via 'login.regenerate2FASecret' - Secret Rotation During Pending Challenge
    Hoch · 7.4 CVE-2026-62232 < 2.0.4 2.0.4
  15. Grav: Remote code execution via unrestricted callable in Blueprint::dynamicData()
    Hoch CVE-2026-64850 < 2.0.7 2.0.7
  16. Grav: .htaccess file extension rules bypass via case variation on case-insensitive filesystems
    Hoch CVE-2026-62230 < 2.0.4 2.0.4
  17. Grav: Unauthenticated denial of service via unbounded image derivative dimensions
    Hoch CVE-2026-53653 >= 2.0.0-beta.1, < 2.0.0-rc.8, < 1.7.53 2.0.0-rc.8, 1.7.53
  18. Grav: Twig sandbox allows editor-role users to exfiltrate all plugin secrets via Config::toArray()
    Hoch · 7.7 CVE-2026-44738 < 2.0.0-rc.2 2.0.0-rc.2
  19. Low-privileged Grav API users can create super-admin accounts via blueprint-upload
    Hoch CVE-2026-42844 < 2.0.0-beta.4 2.0.0-beta.4
  20. Grav is Vulnerable to Stored XSS via Tag Injection
    Hoch · 8.9 CVE-2026-42611 < 2.0.0-beta.2 2.0.0-beta.2
  21. Grav has Unauthenticated Path Traversal & Arbitrary File Write in its FormFlash component
    Hoch CVE-2026-42608 < 2.0.0-beta.2 2.0.0-beta.2
  22. Grav Vulnerable to Administrative Account Disruption and Privilege De-escalation via User Overwrite Logic
    Hoch · 8.1 CVE-2026-42609 < 2.0.0-beta.2 2.0.0-beta.2
  23. Grav has multiple RCE vectors: unsafe unserialize (x3), command injection in git clone, SSTI blocklist bypass
    Kritisch CVE-2026-56700 < 2.0.0-beta.2 2.0.0-beta.2
  24. Grav Vulnerable to Publisher-Level Stored XSS via Unquoted Event Attributes
    Hoch · 8.5 CVE-2026-42612 < 2.0.0-beta.2 2.0.0-beta.2
  25. Grav Vulnerable to Privilege Escalation via Missing Server-Side Validation of groups/access
    Kritisch · 9.4 CVE-2026-42613 < 2.0.0-beta.2 2.0.0-beta.2
  26. Grav Vulnerable to Remote Code Execution (RCE) via Malicious Plugin ZIP Upload in Direct Install Feature
    Kritisch · 9.1 CVE-2026-42607 < 2.0.0-beta.2 2.0.0-beta.2
  27. Grav may be vulnerable to SSRF attack via Twig Templates
    Kritisch · 9.1 CVE-2025-66844 <= 1.7.49.5 keine Korrektur
  28. Grav is vulnerable to Server-Side Template Injection (SSTI) via Forms
    Hoch CVE-2025-66298 < 1.8.0-beta.27 1.8.0-beta.27
  29. Grav is vulnerable to RCE via SSTI through Twig Sandbox Bypass
    Hoch CVE-2025-66294 < 1.8.0-beta.27 1.8.0-beta.27
  30. Grav vulnerable to Privilege Escalation and Authenticated Remote Code Execution via Twig Injection
    Hoch CVE-2025-66297 < 1.8.0-beta.27 1.8.0-beta.27
  31. Grav vulnerable to Path traversal / arbitrary YAML write via user creation leading to Account Takeover / System Corruption
    Hoch · 8.8 CVE-2025-66295 < 1.8.0-beta.27 1.8.0-beta.27
  32. Grav vulnerable to Denial of Service via Improper Input Handling in 'Supported' Parameter
    Hoch CVE-2025-66305 < 1.8.0-beta.27 1.8.0-beta.27
  33. Grav Exposes Password Hashes Leading to privilege escalation dieser Eintrag
    Mittel · 6.2 CVE-2025-66304 < 1.8.0-beta.27 1.8.0-beta.27
  34. Grav has Broken Access Control which allows an Editor to modify the page's YAML Frontmatter to alter form processing actions
    Hoch CVE-2025-66301 < 1.8.0-beta.27 1.8.0-beta.27
  35. Grav is vulnerable to Arbitrary File Read
    Hoch · 8.5 CVE-2025-66300 < 1.8.0-beta.27 1.8.0-beta.27
  36. Grav is Vulnerable to Security Sandbox Bypass with SSTI (Server Side Template Injection)
    Hoch · 8.8 CVE-2025-66299 < 1.8.0-beta.27 1.8.0-beta.27
  37. Grav vulnerable to Privilege Escalation in Grav Admin: Missing Username Uniqueness Check Allows Admin Account Takeover
    Hoch · 8.8 CVE-2025-66296 < 1.8.0-beta.27 1.8.0-beta.27
  38. Grav Vulnerable to Arbitrary File Read to Account Takeover
    Hoch · 8.5 CVE-2024-34082 < 1.7.46 1.7.46
  39. Server Side Template Injection (SSTI) via Twig escape handler
    Hoch · 8.8 CVE-2024-28119 < 1.7.45 1.7.45
  40. Server Side Template Injection (SSTI)
    Hoch · 8.8 CVE-2024-28118 < 1.7.45 1.7.45
  41. Server Side Template Injection (SSTI)
    Hoch · 8.8 CVE-2024-28117 < 1.7.45 1.7.45
  42. Server-Side Template Injection (SSTI) with Grav CMS security sandbox bypass
    Hoch · 8.8 CVE-2024-28116 < 1.7.45 1.7.45
  43. Grav File Upload Path Traversal
    Hoch · 8.8 CVE-2024-27921 < 1.7.45 1.7.45
  44. Remote Code Execution by uploading a phar file using frontmatter
    Hoch · 8.8 CVE-2024-27923 < 1.7.43 1.7.43
  45. grav Server-side Template Injection (SSTI) mitigation bypass
    Hoch · 7.2 CVE-2023-37897 < 1.7.42.2 1.7.42.2
  46. Grav Server-side Template Injection (SSTI) via Twig Default Filters
    Hoch · 7.2 CVE-2023-34448 < 1.7.42 1.7.42
  47. Grav Server-side Template Injection (SSTI) via Denylist Bypass Vulnerability
    Hoch · 7.2 CVE-2023-34253 < 1.7.42 1.7.42
  48. Grav Server-side Template Injection (SSTI) via Twig Default Filters
    Hoch · 7.2 CVE-2023-34252 < 1.7.42 1.7.42
  49. Grav Server Side Template Injection (SSTI) vulnerability
    Kritisch · 9.1 CVE-2023-34251 < 1.7.42 1.7.42
  50. Code injection in grav
    Hoch · 7.2 CVE-2022-2073 < 1.7.34 1.7.34
  51. Grav CMS Arbitrary File Deletion
    Hoch · 8.1 CVE-2020-29555 >= 1.7.0-beta.1, <= 1.7.0-rc.17, < 1.6.30 1.6.30
  52. Grav CMS Cross-Site Request Forgery (CSRF)
    Hoch · 8.8 CVE-2020-29553 >= 1.7.0-beta.1, <= 1.7.0-rc.17, < 1.6.30 1.6.30
  53. Stored Cross-site Scripting in grav
    Hoch · 7.1 CVE-2022-0970 < 1.7.31 1.7.31
  54. Path traversal in grav
    Hoch · 8.8 CVE-2021-3924 <= 1.7.24 keine Korrektur
  55. Grav's Twig processing allowing dangerous PHP functions by default
    Hoch · 8.4 CVE-2021-29440 < 1.7.11 1.7.11

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