CVE-2022-32770
Published: 22 August 2022
Summary
CVE-2022-32770 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Wwbn Avideo. Its CVSS base score is 6.1 (Medium).
Operationally, ranked in the top 5.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
A cross-site scripting vulnerability exists in the footer alerts functionality of WWBN AVideo version 11.6 and development master commit 3f7c0364. The issue stems from insufficient sanitization of the "toast" parameter, which is inserted directly into the document and enables arbitrary JavaScript execution when processed. The flaw is tracked as CWE-79 with a CVSS 3.1 score of 6.1.
An unauthenticated attacker can supply a specially crafted HTTP request containing malicious JavaScript in the toast parameter. If an authenticated user is induced to submit or view the request, the script executes in the user's browser context, allowing actions such as session token theft or interface manipulation within the application's origin.
The referenced Talos advisory TALOS-2022-1538 and the AVideo updateDb.v12.0.sql script document the remediation steps applied in the v12.0 database update.
EPSS scores have remained in a narrow band between 0.1442 and a peak of 0.1624 with no pronounced post-disclosure climb.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-35836
Vulnerability details
A cross-site scripting (xss) vulnerability exists in the footer alerts functionality of WWBN AVideo 11.6 and dev master commit 3f7c0364. A specially-crafted HTTP request can lead to arbitrary Javascript execution. An attacker can get an authenticated user to send a…
more
crafted HTTP request to trigger this vulnerability.This vulnerability arrises from the "toast" parameter which is inserted into the document with insufficient sanitization.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.