Stored cross-site scripting in Robo Gallery via image overlay effect meta
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.
Summary
The Robo Gallery WordPress plugin before 5.2.6 does not sanitise and escape some of its image settings before outputting them in a gallery page. An attacker with the Author role or higher can store script that runs in the browser of any visitor who views the gallery, including administrators, even where unfiltered_html is disallowed such as on multisite. The references for this issue include a public exploit link.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
The Robo Gallery WordPress plugin before 5.2.6 does not sanitise and escape some of its image settings before outputting them in a gallery page, allowing users with the Author role and above to perform Stored Cross-Site Scripting attacks that execute in the browser of any visitor viewing the gallery, including administrators, even where the unfiltered_html capability is disallowed such as on multisite.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 | Robo Gallery | before 5.2.6 | 5.2.6 | Patch available | CNA |
- Robo Gallery VendorUnknown Affected before 5.2.6 Fixed in 5.2.6 Patch available CNA
Remediation
Update Robo Gallery to version 5.2.6 or later, which fixes the issue.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA Robo Gallery (Unknown) Fixed in 5.2.6
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Robo Gallery 5.2.6
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2026-70446 Stored XSS in Robo Gallery WordPress plugin gallery settingsPriority LOW 32
- TI-2026-70445 Stored cross-site scripting in Robo Gallery WordPress pluginPriority LOW 32
- TI-2026-70444 Stored cross-site scripting in Robo Gallery WordPress plugin via image alt textPriority LOW 32
Timeline
- 2026-10-11 Threatist record created from CVE-2026-81153
- 2026-10-11 Alias added: GHSA-hhc5-3q59-7gxq
References
Sources
- CVE-2026-81153 · CVE Program
- CVE-2026-81153 · NVD
- FIRST EPSS
- GHSA-hhc5-3q59-7gxq · 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