Remark42: Cross-Site Scripting (XSS) on /api/v1/img via content-type spoofing

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-48788 · Microsoft / collected KEV context

EUVD-2026-37511

GHSA-4c8j-mgm4-qqvp

GO-2026-5804

cve-program · CVE-2026-48788

• https://github.com/umputun/remark42/security/advisories/GHSA-4c8j-mgm4-qqvp
• https://github.com/umputun/remark42/commit/78d6de6bce1e961f023969da3ec8a00dd80c9ae8
• https://github.com/umputun/remark42/releases/tag/v1.16.0

euvd · EUVD-2026-37511

• https://github.com/umputun/remark42/security/advisories/GHSA-4c8j-mgm4-qqvp
• https://github.com/umputun/remark42/commit/78d6de6bce1e961f023969da3ec8a00dd80c9ae8
• https://github.com/umputun/remark42/releases/tag/v1.16.0

nvd · CVE-2026-48788

• https://github.com/umputun/remark42/commit/78d6de6bce1e961f023969da3ec8a00dd80c9ae8
• https://github.com/umputun/remark42/releases/tag/v1.16.0
• https://github.com/umputun/remark42/security/advisories/GHSA-4c8j-mgm4-qqvp

osv · GHSA-4c8j-mgm4-qqvp

• https://github.com/umputun/remark42/security/advisories/GHSA-4c8j-mgm4-qqvp
• https://nvd.nist.gov/vuln/detail/CVE-2026-48788
• https://github.com/umputun/remark42/commit/78d6de6bce1e961f023969da3ec8a00dd80c9ae8
• https://github.com/umputun/remark42
• https://github.com/umputun/remark42/releases/tag/v1.16.0

osv · GO-2026-5804

• https://github.com/umputun/remark42/security/advisories/GHSA-4c8j-mgm4-qqvp
• https://nvd.nist.gov/vuln/detail/CVE-2026-48788
• https://github.com/umputun/remark42/commit/78d6de6bce1e961f023969da3ec8a00dd80c9ae8
• https://github.com/umputun/remark42/releases/tag/v1.16.0

No related operational record is retained in the current change model.