Medium severity · published Sep 2, 2026
CVE-2026-82884
All in One SEO < 5.0.0.1 - Contributor+ Stored XSS via ai-assistant Block
6.8
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 37% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AI
All in One SEO ·
before 5.0.0.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-82884
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-82884
wpscan.com
https://wpscan.com/vulnerability/9d4e5075-062a-42d7-beba-9f96f9ce76da/
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