CVE-2023-51534 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripti

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Brave Brave – Create Popup, Optins, Lead Generation, Survey, Sticky Elements & Interactive Content allows Stored XSS.This issue affects Brave – Create Popup, Optins

01What is this vulnerability?

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Brave Brave – Create Popup, Optins, Lead Generation, Survey, Sticky Elements & Interactive Content allows Stored XSS.This issue affects Brave – Create Popup, Optins, Lead Generation, Survey, Sticky Elements & Interactive Content: from n/a through 0.6.2.

02Affected products

Vendor	Product	Versions
Brave	Brave	Create Popup, Optins, Lead Generation, Survey, Sticky Elements & Interactive Content — n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-02-01T10:31:20.665Z
• Last modified: 2024-08-02T22:40:32.563Z

09References

• patchstack.com — https://patchstack.com/database/vulnerability/brave-popup-builder/wordpress-brav…