Medium severity · published Oct 16, 2023
CVE-2023-5057
ActivityPub for WordPress < 1.0.0 - Contributor+ Stored XSS
5.4
CVSS
0.5%
EPSS
No
On KEV
Description
The ActivityPub WordPress plugin before 1.0.0 does not escape user metadata before outputting them in mentions, which could allow users with a role of Contributor and above to perform Stored XSS attacks
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AC
ActivityPub ·
before 1.0.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-5057
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-5057
Exploit
https://wpscan.com/vulnerability/58a63507-f0fd-46f1-a80c-6b1c41dddcf5
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