CVE-2026-53962
- Source
- https://cve.org/CVERecord?id=CVE-2026-53962
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53962.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-53962
- Aliases
-
- BIT-discourse-2026-53962
- GHSA-jmcf-3367-78vv
- Published
- 2026-07-09T22:02:27.430Z
- Modified
- 2026-07-16T03:48:42.118164519Z
- Severity
-
- 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
- Summary
- Discourse: Insufficient SVG sanitization logic
- Details
-
Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, insufficient SVG sanitization in upload and user avatar handling could lead to cross-site scripting when a user visited specific URLs that are not normally part of community browsing. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.
- Database specific
{ "cwe_ids": [ "CWE-79" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53962.json", "cna_assigner": "GitHub_M" }- References
-
- https://github.com/discourse/discourse/releases/tag/v2026.1.5
- https://github.com/discourse/discourse/releases/tag/v2026.4.2
- https://github.com/discourse/discourse/releases/tag/v2026.5.1
- https://github.com/discourse/discourse/releases/tag/v2026.6.0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53962.json
- https://github.com/discourse/discourse/security/advisories/GHSA-jmcf-3367-78vv
- https://nvd.nist.gov/vuln/detail/CVE-2026-53962
- https://github.com/discourse/discourse/commit/3ee8343cd7f00d59d8513bee0a12e02d50bfc358
- https://github.com/discourse/discourse/commit/810c2715799fd08b06fd6ffc664d9562fe9ea6ff
- https://github.com/discourse/discourse/commit/92a699d89b84685b6fdd63cd0d0e371793c69dad
- https://github.com/discourse/discourse/commit/b8ceb49f4ba52257be30eb3c2ce51a5bf03be5fe
Affected packages
Git / github.com/discourse/discourse
Affected ranges
- Type
- GIT
- Repo
- https://github.com/discourse/discourse
- Events
-
IntroducedFixedIntroducedFixedIntroducedFixedIntroducedFixedFixedFixedFixedFixed
- Database specific
{ "cpe": [ "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*", "cpe:2.3:a:discourse:discourse:2026.6.0:*:*:*:latest:*:*:*" ], "extracted_events": [ { "introduced": "2026.1.0" }, { "fixed": "2026.1.5" }, { "introduced": "2026.4.0" }, { "fixed": "2026.4.2" }, { "introduced": "2026.5.0" }, { "fixed": "2026.5.1" }, { "introduced": "2026.6.0" }, { "last_affected": "2026.6.0" } ], "source": [ "CPE_RANGE", "CPE_STRING", "REFERENCES" ] }