CVE-2023-52199
WordPress ActivityPub plugin <= 1.0.5 - Unauthenticated Broken Access Control vulnerability
Missing Authorization vulnerability in Matthias Pfefferle & Automattic ActivityPub.This issue affects ActivityPub: from n/a through 1.0.5.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
WordPress ActivityPub plugin <= 1.0.5 - Unauthenticated Broken Access Control vulnerability
Missing Authorization vulnerability in Matthias Pfefferle & Automattic ActivityPub.This issue affects ActivityPub: from n/a through 1.0.5.
- Record
CVE-2023-52199- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-862
- Updated
- 2026-11-02
EUVDEUVD-2023-56872
Missing Authorization vulnerability in Matthias Pfefferle & Automattic ActivityPub.This issue affects ActivityPub: from n/a through 1.0.5.
- Record
EUVD-2023-56872- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-5cg4-pm73-p483
Missing Authorization vulnerability in Matthias Pfefferle & Automattic ActivityPub.This issue...
Missing Authorization vulnerability in Matthias Pfefferle & Automattic ActivityPub.This issue affects ActivityPub: from n/a through 1.0.5.
- Record
GHSA-5cg4-pm73-p483- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-862
- Updated
- 2026-11-02
NVD
Missing Authorization vulnerability in Matthias Pfefferle & Automattic ActivityPub.This issue affects ActivityPub: from n/a through 1.0.5.
- Record
CVE-2023-52199- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-862
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-52199 is a medium vulnerability (CVSS 6.5) in Automattic Activitypub, published June 11, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 28th percentile. No source names a fixed version.