CVE-2023-3707: activitypub vulnerability

CVE-2023-3707: medium vulnerability affecting activitypub. Check CVSS, KEV status, business impact and recommended administrator actions.
CVE-2023-3707CVSS 4.3CMS

CVE-2023-3707: activitypub vulnerability

CVE-2023-3707: medium vulnerability affecting activitypub. Check CVSS, KEV status, business impact and recommended administrator actions.

CVSS
4.3 MEDIUM
EPSS
37.9%
Known exploited
not in KEV
Product
activitypub

What is known

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 subscriber to retrieve the content of arbitrary post (such as draft and private) via an IDOR vector. Password protected posts are not affected by this issue.

Business impact

Successful exploitation of CVE-2023-3707, a medium vulnerability (CVSS 4.3) affecting activitypub, may affect the confidentiality, integrity or availability of the vulnerable environment. The exact impact depends on the installed version, exposed interfaces and deployment configuration.

Recommended administrator action

Confirm whether activitypub is present and compare installed versions with the vendor advisory and NVD record. Apply the vendor patch or documented mitigation; until remediation is complete, reduce exposure of affected interfaces, review relevant logs and monitor for indicators of exploitation. DataHouse can support version verification, managed patching, network exposure reduction, log review and backup validation for dedicated, cloud and colocated environments.

Sources

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