Brave Popup Builder < 0.8.6 - Subscriber+ Unpublished Popup Disclosure via Preview
Priority LOW 20CWE-639Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-639.
Summary
Brave Popup Builder (slug: brave-popup-builder) has a broken access control issue in versions through 0.8.5. Any logged-in user - Subscriber or WooCommerce Customer is enough — can read popup content they shouldn't have access to by passing a post ID in the URL.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0027 19th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Brave (Unknown): 0.8.6
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Brave | before 0.8.6 | 0.8.6 | Patch available | CNA |
- Brave VendorUnknown Affected before 0.8.6 Fixed in 0.8.6 Patch available CNA
Remediation
- Fix · CNA Brave (Unknown) Fixed in 0.8.6
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Brave 0.8.6
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-53859 Brave Popup Builder < 0.8.6 - Unauthenticated Reflected XSS via UTM ParametersPriority LOW 31
Timeline
- 2026-10-02 Threatist record created from CVE-2026-77116
- 2026-10-03 Alias added: GHSA-3pv4-5j2g-fvvj
References
Sources
- CVE-2026-77116 · CVE Program
- CVE-2026-77116 · NVD
- FIRST EPSS
- GHSA-3pv4-5j2g-fvvj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences