How severe is CVE-2026-34716?

CVE-2026-34716 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-34716 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-34716?

CVE-2026-34716 affects Wwbn Avideo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-34716?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-34716 have an EU (EUVD) identifier?

Yes. CVE-2026-34716 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17646.

When was CVE-2026-34716 published?

CVE-2026-34716 was published on 2026-03-31 and last updated on 2026-06-17.

CVE-2026-34716

CVE-2026-34716 is a medium-severity vulnerability in Wwbn Avideo with a CVSS 3.x base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17646
Weakness: CWE-79
Affected product: Wwbn Avideo
Published: 2026-03-31
Last modified: 2026-06-17

Description

WWBN AVideo is an open source video platform. In versions 26.0 and prior, the AVideo YPTSocket plugin's caller feature renders incoming call notifications using the jQuery Toast Plugin, passing the caller's display name directly as the heading parameter. The toast plugin constructs the heading as raw HTML ('<h2>' + heading + '</h2>') and inserts it into the DOM via jQuery's .html() method, which parses and executes any embedded HTML or script content. An attacker can set their display name to an XSS payload and trigger code execution on any online user's browser simply by initiating a call - no victim interaction is required beyond being connected to the WebSocket. At time of publication, there are no publicly available patches.

Frequently asked questions

What is CVE-2026-34716?: WWBN AVideo is an open source video platform. In versions 26.0 and prior, the AVideo YPTSocket plugin's caller feature renders incoming call notifications using the jQuery Toast Plugin, passing the caller's display name directly as the heading parameter. The toast plugin constructs the heading as raw HTML ('<h2>' + heading + '</h2>') and inserts it into the DOM via jQuery's .html() method, which parses and executes any embedded HTML or script content. An attacker can set their display name to an XSS payload and trigger code execution on any online user's browser simply by initiating a call - no victim interaction is required beyond being connected to the WebSocket. At time of publication, there are no publicly available patches.
How severe is CVE-2026-34716?: CVE-2026-34716 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-34716 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-34716?: CVE-2026-34716 affects Wwbn Avideo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-34716?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-34716 have an EU (EUVD) identifier?: Yes. CVE-2026-34716 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17646.
When was CVE-2026-34716 published?: CVE-2026-34716 was published on 2026-03-31 and last updated on 2026-06-17.

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-w4hp-w536-jg64

Affected products (1)

cpe:2.3:a:wwbn:avideo:*:*:*:*:*:*:*:*

More vulnerabilities in Wwbn Avideo

CVE-2026-40911 — Critical (CVSS 10.0): WWBN AVideo is an open source video platform. In versions 29.0 and prior, the YPTSocket plugin's WebSocket server…
CVE-2026-33478 — Critical (CVSS 10.0): WWBN AVideo is an open source video platform. In versions up to and including 26.0, multiple vulnerabilities in…
CVE-2022-30547 — Critical (CVSS 9.9): A directory traversal vulnerability exists in the unzipDirectory functionality of WWBN AVideo 11.6 and dev master…
CVE-2026-41304 — Critical (CVSS 9.8): WWBN AVideo is an open source video platform. In versions 29.0 and below, the `cloneServer.json.php` endpoint in the…
CVE-2026-33770 — Critical (CVSS 9.8): WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `fixCleanTitle()` static method…
CVE-2026-33352 — Critical (CVSS 9.8): WWBN AVideo is an open source video platform. Prior to version 26.0, an unauthenticated SQL injection vulnerability…

All CVEs affecting Wwbn Avideo →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →