CVE-2024-51991
CVE-2024-51991 is a medium-severity vulnerability in Octobercms October with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.
Key facts
- Severity: Medium (CVSS 3.x base score 4.9)
- CVSS v4: 1.1
- EPSS exploit prediction: 0% (22nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-13372
- Weakness: CWE-434
- Affected product: Octobercms October
- Published:
- Last modified:
Description
October is a Content Management System (CMS) and web platform. A vulnerability in versions prior to 3.7.5 affects authenticated administrators with sites that have the `media.clean_vectors` configuration enabled. This configuration will sanitize SVG files uploaded using the media manager. This vulnerability allows an authenticated user to bypass this protection by uploading it with a permitted extension (for example, .jpg or .png) and later modifying it to the .svg extension. This vulnerability assumes a trusted user will attack another trusted user and cannot be actively exploited without access to the administration panel and interaction from the other user. This issue has been patched in v3.7.5.
Frequently asked questions
- What is CVE-2024-51991?
- October is a Content Management System (CMS) and web platform. A vulnerability in versions prior to 3.7.5 affects authenticated administrators with sites that have the `media.clean_vectors` configuration enabled. This configuration will sanitize SVG files uploaded using the media manager. This vulnerability allows an authenticated user to bypass this protection by uploading it with a permitted extension (for example, .jpg or .png) and later modifying it to the .svg extension. This vulnerability assumes a trusted user will attack another trusted user and cannot be actively exploited without access to the administration panel and interaction from the other user. This issue has been patched in v3.7.5.
- How severe is CVE-2024-51991?
- CVE-2024-51991 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2024-51991 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-51991?
- CVE-2024-51991 affects Octobercms October. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-51991?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2024-51991 have an EU (EUVD) identifier?
- Yes. CVE-2024-51991 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-13372.
- When was CVE-2024-51991 published?
- CVE-2024-51991 was published on 2025-05-05 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:octobercms:october:*:*:*:*:*:*:*:*
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