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Low

Zope vulnerable to Stored Cross Site Scripting with SVG images

  • Disclosed: 21.09.2023
  • Updated: 11.10.2026 15:17

Impact

There is a stored cross site scripting vulnerability for SVG images.

Note that an image tag with an SVG image as source is never vulnerable, even when the SVG image contains malicious code. To exploit the vulnerability, an attacker would first need to upload an image, and then trick a user into following a specially crafted link.

All versions of Zope are impacted on sites that allow untrusted users to upload images.

Patches

Patches will be released in Zope 4.8.10 and 5.8.5.

Workarounds

Make sure the "Add Documents, Images, and Files" permission is only assigned to trusted roles. By default only the Manager has this permission.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Python (PyPI) zope < 4.8.10, >= 5.8.0, < 5.8.5 4.8.10, 5.8.5

References

CVSS score 3.7/10
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
Weakness (CWE)
CWE-79
Platform
Python (PyPI)
Package
zope
Disclosed
21.09.2023
Updated
11.10.2026 15:17

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2026-2077 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-wm8q-9975-xh5v - CC BY 4.0

Vulnerability history: zope

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (17) in the archive
Total entries
17
First → latest
05.2021 11.2024
Without a fix
4
Exploited in attacks
0

Severity breakdown

  • Critical 1
  • High 8
  • Medium 6
  • Low 2

Disclosures per year

Severity:
  1. Access control vulnerable to user data deletion by anonynmous users
    Critical · 9.1 CVE-2024-51734 < 5.11.1 5.11.1
  2. Zope vulnerable to Stored Cross Site Scripting with SVG images this entry
    Low · 3.7 CVE-2023-42458 < 4.8.10, >= 5.8.0, < 5.8.5 4.8.10, 5.8.5
  3. ZCatalog plug-in for Zope allows anonymous users to bypass access restrictions
    High CVE-2002-0688 >= 2.4.0, < 2.6.0 2.6.0
  4. Zope does not properly verify the access for objects with proxy roles
    High CVE-2002-0170 >= 2.2.0, < 2.4.4, >= 2.5.0, < 2.5.1 2.4.4, 2.5.1
  5. Zope does not properly perform security registration for legacy names
    High CVE-2000-1211 >= 2.2.0, <= 2.2.4 no fix
  6. Zope does not properly restrict access to the getRoles method
    High CVE-2000-0725 < 2.2.1 2.2.1
  7. Zope DTML implementation Improper Authentication
    High CVE-2000-0062 >= 2.2.0, <= 2.2.4 no fix
  8. Zope is an open-source web application server. Zope versions prior to versions 4.6.3 and 5.3 have a remote code execution security issue. In order to be affected, one must use Python 3 for one's Zope
    High · 7.5 CVE-2021-32811 >= 4.0, < 4.6.3, >= 5.0, < 5.3 4.6.3, 5.3
  9. Zope is an open-source web application server. This advisory extends the previous advisory at https://github.com/zopefoundation/Zope/security/advisories/GHSA-5pr9-v234-jw36 with additional cases of TA
    High · 8.8 CVE-2021-32674 >= 4.0, < 4.6.1, >= 5.0, < 5.2.1 4.6.1, 5.2.1
  10. Zope is an open-source web application server. In Zope versions prior to 4.6 and 5.2, users can access untrusted modules indirectly through Python modules that are available for direct use. By default
    High · 8.8 CVE-2021-32633 < 4.6, >= 5.0, < 5.2 4.6, 5.2

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