Medium severity · published Oct 16, 2023
CVE-2023-5057
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…
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 · Automattic
before 1.0.0 · source: 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
More from Activitypub
7.5
CVE-2026-4338
ActivityPub Routing < 8.0.2 - Unauthenticated Drafts/Scheduled/Pending Posts Disclosure
6.5
CVE-2023-52199
WordPress ActivityPub plugin <= 1.0.5 - Unauthenticated Broken Access Control vulnerability
5.4
CVE-2023-3746
The ActivityPub WordPress plugin before 1.0.0 does not sanitize and escape some data from post content, which could allow contributor and above role to perform Stored Cross-Site…
4.3
CVE-2023-3707
The ActivityPub WordPress plugin before 1.0.0 does not ensure that post contents to be displayed are public and belong to the plugin, allowing any authenticated user, such as…
4.3
CVE-2023-3706
The ActivityPub WordPress plugin before 1.0.0 does not ensure that post titles to be displayed are public and belong to the plugin, allowing any authenticated user, such as…