{"cve":"CVE-2025-13523","nvd":{"published":"2026-02-06T16:16:13.370","modified":"2026-06-17T08:34:16.960","status":"Analyzed","description":"Mattermost Confluence plugin version <1.7.0 fails to properly escape user-controlled display names in HTML template rendering which allows authenticated Confluence users with malicious display names to execute arbitrary JavaScript in victim browsers via sending a specially crafted OAuth2 connection link that, when visited, renders the attacker's display name without proper sanitization. Mattermost Advisory ID: MMSA-2025-00557","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4},"cwes":["CWE-79"],"references":["https://mattermost.com/security-updates"],"products":["mattermost:confluence"],"source":"nvd","synced_at":"2026-10-19T22:22:27.261130201+00:00"},"epss":{"cve":"CVE-2025-13523","score":0.0022,"percentile":0.12533,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-ffx7-34p2-vm3w","url":"https://osv.dev/vulnerability/GHSA-ffx7-34p2-vm3w","summary":"Mattermost Confluence plugin doesn't properly escape user-controlled display names in HTML template rendering","modified":"2026-02-22T23:23:59.802707Z","packages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost-plugin-confluence","purl":"pkg:golang/github.com/mattermost/mattermost-plugin-confluence","ranges":["<1.7.0"],"fixed":["1.7.0"]}]},{"id":"GO-2026-4456","url":"https://osv.dev/vulnerability/GO-2026-4456","summary":"Mattermost Confluence plugin doesn't properly escape user-controlled display names in HTML template rendering in github.com/mattermost/mattermost-plugin-confluence","modified":"2026-02-19T20:41:26.069755Z","packages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost-plugin-confluence","purl":"pkg:golang/github.com/mattermost/mattermost-plugin-confluence","ranges":["<1.7.0"],"fixed":["1.7.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}