All in One SEO < 5.0.0.1 - Contributor+ Stored XSS via ai-assistant Block
Priority LOW 32CWE-79Published · Updated
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 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The All in One SEO WordPress plugin before 5.0.0.1 does not sanitise and escape some content stored in posts before rendering it back in the post editor, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks that trigger when a higher privileged user edits the post.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00431 37th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed All in One SEO (Unknown): 5.0.0.1
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 | All in One SEO | before 5.0.0.1 | 5.0.0.1 | Patch available | CNA |
- All in One SEO VendorUnknown Affected before 5.0.0.1 Fixed in 5.0.0.1 Patch available CNA
Remediation
- Fix · CNA All in One SEO (Unknown) Fixed in 5.0.0.1
Timeline
- 2026-10-02 Threatist record created from CVE-2026-82884
- 2026-10-03 Alias added: GHSA-46w6-gf75-jc42
References
Sources
- CVE-2026-82884 · CVE Program
- CVE-2026-82884 · NVD
- FIRST EPSS
- GHSA-46w6-gf75-jc42 · 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