CVE-2026-77615

Paella Player: Stored XSS via caption cue text

Published Sep 17, 2026 CVSS 3.1 · 8.7 High EPSS < 1% KEV · Not listed
Description
Paella Player is a set of libraries to create a multi stream video player. Prior to Paella Player 2.12.11 (as used in Opencast prior to 19.7 and 20.2), there is a potential XSS attack though closed captions cue text. This vulnerability is fixed in 2.12.11.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-m6c8-jcw2-5r25 Opencast: Stored XSS in Paella player via WebVTT/DFXP caption cue text
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Opencast
Opencast opencast
Polimediaupv
Polimediaupv paella-player
Vendors & Products Opencast
Opencast opencast
Polimediaupv
Polimediaupv paella-player
Type Values Removed Values Added
Description Paella Player is a set of libraries to create a multi stream video player. Prior to Paulla Player 2.12.11 (as used in Opencast prior to 19.7 and 20.2), there is a potential XSS attack though closed captions cue text. This vulnerability is fixed in 2.12.11. Paella Player is a set of libraries to create a multi stream video player. Prior to Paella Player 2.12.11 (as used in Opencast prior to 19.7 and 20.2), there is a potential XSS attack though closed captions cue text. This vulnerability is fixed in 2.12.11.
Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Sep 22, 2026, 1:50 AM
Reserved
Aug 20, 2026, 8:52 PM
Status
Deferred
Published
Sep 17, 2026, 9:17 PM
Modified
Sep 24, 2026, 9:25 PM