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GHSA-M6C8-JCW2-5R25 Opencast: Stored XSS in Paella player via WebVTT/DFXP caption cue text

🗓️ 18 Sep 2026 13:11:59Reported by GoogleType 
osv
 osv🔗 osv.dev👁 2 Views

Summary The Opencast Paella player renders caption cue text into innerHTML without escaping. The captions canvas clears _captionsContainer.innerHTML and then appends each active cue with _captionsContainer.innerHTML += cue, so HTML inside a WebVTT...

Related
Refs
ReporterTitlePublishedViews
Family
circl
Circl		CVE-2026-77615
18 Sep 202614:31
–circl
cve
CVE		CVE-2026-77615
17 Sep 202620:51
–cve
cvelist
Cvelist		CVE-2026-77615 Paella Player: Stored XSS via caption cue text
17 Sep 202620:51
–cvelist
euvd
EUVD		EUVD-2026-82473
18 Sep 202613:11
–euvd
github
Github Security Blog		Opencast: Stored XSS in Paella player via WebVTT/DFXP caption cue text
18 Sep 202613:11
–github
nvd
NVD		CVE-2026-77615
17 Sep 202621:17
–nvd
patchstack
Patchstack		NPM: Opencast: Stored XSS in Paella player via WebVTT/DFXP caption cue text
18 Sep 202613:11
–patchstack

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18 Sep 2026 13:30Current
CVSS 3.18.7
EPSS0.00392
2