Elgg before 7.0.0 does not check image dimensions to prevent denial of service via a large avatar upload.
Priority LOW 20CWE-770Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-770.
Summary
Elgg before 7.0.0 does not check image dimensions to prevent denial of service via a large avatar upload.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00451 39th percentileScored 2026-11-07
Fix Fixed Elgg (Elgg): 6.3.5, 7.0.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Elgg (Elgg) Fixed in 6.3.5, 7.0.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-65650
- 2026-10-03 Alias added: GHSA-7983-35fr-8qwm
References
More Elgg vulnerabilities
- TI-2011-02588 Elgg through 1.7.10 has a SQL injection vulnerability CVSS 3.1CRITICAL 9.8
- TI-2021-02877 Exposure of Private Personal Information to an Unauthorized Actor in elgg/elgg CVSS 3.1HIGH 7.5
- TI-2012-05280 engine/lib/users.php in Elgg before 1.8.5 does not properly specify permissions for the… CVSS 2.0MEDIUM 6.8
- TI-2019-08233 Elgg before 1.12.18 and 2.3.x before 2.3.11 has an open redirect. CVSS 3.0MEDIUM 6.1
- TI-2011-02587 Elgg through 1.7.10 has XSS CVSS 3.1MEDIUM 6.1
- TI-2021-02861 Authorization Bypass Through User-Controlled Key in elgg/elgg CVSS 3.1MEDIUM 5.9
Sources
- CVE-2026-65650 · CVE Program
- CVE-2026-65650 · NVD
- FIRST EPSS
- GHSA-7983-35fr-8qwm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences