CVE-2026-53963
- Source
- https://cve.org/CVERecord?id=CVE-2026-53963
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53963.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-53963
- Aliases
-
- BIT-discourse-2026-53963
- GHSA-wg5x-7f23-m3r5
- Published
- 2026-07-09T22:05:46.329Z
- Modified
- 2026-07-16T03:48:42.198130821Z
- Severity
-
- 7.3 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- Discourse: Stored-XSS in 2FA delete confirmation modal
- Details
-
Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, a malicious second factor name on an attacker-controlled account was not escaped in the delete confirmation dialog, allowing stored cross-site scripting when an administrator impersonated that account. 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-2026-53963.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-2026-53963.json
- https://github.com/discourse/discourse/security/advisories/GHSA-wg5x-7f23-m3r5
- https://nvd.nist.gov/vuln/detail/CVE-2026-53963
- https://github.com/discourse/discourse/commit/40de62cddadc65c328a1028ab999f3fa94adbfed
- https://github.com/discourse/discourse/commit/529e17d4d570a48972e7cf64720e5dd1fdf23ca8
- https://github.com/discourse/discourse/commit/d92973e51a46cf6dd20c71e6068e6769b67eea5b
- https://github.com/discourse/discourse/commit/daea5214d833eacbdd3b1a78d99eb14e9cabd915
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" ] }