> CVE-2026-77615 [HIGH]

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PUBLISHED
2026-09-17 21:17
MODIFIED
2026-09-17 21:17
CVSS_SCORE V3
8.7
EPSS (Prob. Exploit)
0.56%
Top 54.7%
DATA SOURCES:
NVD đź”— 2026-09-17 CWE MITRE đź”— 2026-10-01 FIRST EPSS đź”— 2026-10-16 GITHUB đź”— 2026-09-23 OSV đź”— 2026-09-23

> 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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
EXPLOITABILITY
2.3
IMPACT
5.8

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
Low (L)
Authentifié avec compte utilisateur basique
UI (Interaction Utilisateur)
User Interaction
Required (R)
Nécessite une action utilisateur (clic lien, ouverture fichier, etc.)
S (Périmètre)
Scope
Changed (C)
Impact s'étend au-delà du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-79

> CWE DETAILED DESCRIPTIONS

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') - The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

> GITHUB SECURITY ADVISORY

GHSA-m6c8-jcw2-5r25 HIGH

Opencast: Stored XSS in Paella player via WebVTT/DFXP caption cue text

AFFECTED PACKAGES:
NPM / paella-core
< 1.50.6
Fixed in: 1.50.6
MAVEN / org.opencastproject:opencast-engage-paella-player-7
>= 20.0, < 20.2
Fixed in: 20.2
MAVEN / org.opencastproject:opencast-engage-paella-player-7
< 19.7
Fixed in: 19.7

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Paella Player: Stored XSS via caption cue text

AFFECTED PACKAGES:
Unknown / Unknown
Unknown / Unknown
228 versions affected
Unknown / Unknown
11 versions affected
ALIASES:
GHSA-m6c8-jcw2-5r25

> HISTORIQUE DES MODIFICATIONS

Première apparition
17/09/2026 21:17
Source: NVD
📊 ENRICHISSEMENT 01/10/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') - The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in...
Total des modifications: 1 Dernière mise à jour: 3 weeks ago

> REFERENCES

https://github.com/opencast/opencast/commit/701682c635f668228c3e8fb7b4564b329478...
https://github.com/opencast/opencast/pull/7736
https://github.com/opencast/opencast/releases/tag/19.7
https://github.com/opencast/opencast/releases/tag/20.2
https://github.com/opencast/opencast/security/advisories/GHSA-m6c8-jcw2-5r25
https://github.com/polimediaupv/paella-core/commit/94a36490808ac5a1f60a0745d71ec...
https://github.com/polimediaupv/paella-core/commit/9b2f14ec4cf55efaf4c045c77a5ed...
https://github.com/polimediaupv/paella-player/blob/a1b6c42467938a00a4b4d0b8c6843...
https://github.com/polimediaupv/paella-player/commit/6fe4af7306044198c8e91e2e7f4...
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