Answer in brief
CVE-2026-126778 records a Medium severity (CVSS 5.1) vulnerability in Wallos 4.4.0 before 5.10.3 Stored XSS via sendnotifications.php. The current sources do not mark it as known exploited. The current feed maps ellite/Wallos (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps ellite/Wallos (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| ellite/Wallosgeneric | >=4.4.0 <5.10.3 | 5.10.3 |
Published upstream
Nov 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 11, 2026
Wallos 4.4.0 before 5.10.3 contains a stored cross-site scripting vulnerability in endpoints/cronjobs/sendnotifications.php that allows registered users to inject scripts via unescaped notification service responses. Attackers can point their Mattermost webhook URL or Web Push endpoint at a controlled server returning JavaScript, which executes in the administrator's session when sendnotifications.php is opened.
Quoted source text, attributed separately from HOL analysis.