What is CVE-2026-84477?
AVideo Live_schedule::setTitle() and setDescription() store POST input without sanitization, allowing users with streaming permission to inject malicious scripts. Unauthenticated attackers can access remindMe.php to execute stored XSS payloads in victim browsers without requiring authentication.
The record classifies CVE-2026-84477 under weakness class CWE-79. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs a user to take an action first. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 34 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 5.4 — MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS v4.0 base score
- 5.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N - EPSS (FIRST)
- 0.1% probability of exploitation in the next 30 days, higher than 6.4% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 3/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-09-01, last modified 2026-09-02
Is CVE-2026-84477 being exploited?
It currently carries a trending score of 31 in the Threadlinqs vulnerability feed.
Affected products and versions
- WWBN: AVideo
How to fix CVE-2026-84477
No vendor patch reference has been recorded for CVE-2026-84477 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.
Threat activity tracking CVE-2026-84477
No threat campaign in the Threadlinqs corpus currently references CVE-2026-84477, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.
Sources
Enriched from CVE.org, GitHub Security Advisories, FIRST EPSS. Last verified by Threadlinqs on .