Auth bypass in Publishpress Co-Authors, Multiple Authors And Guest In An Author Box With

CVE-2024-9215

The Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors plugin for WordPress is vulnerable to Insecure Direct Object Reference to Privilege Escalation/Account Takeover in all versions up to, and including, 4.7.1 via the action_edited_author() due to missing validation on the 'authors-user_id' user controlled key. This makes it possible for authenticated attackers, with Author-level access and above, to update arbitrary user accounts email addresses, including administrators, which can then be leveraged to reset that user's account password and gain access.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.005 (40.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-9215?
CVE-2024-9215 is a high-severity vulnerability in Publishpress Co-Authors, Multiple Authors And Guest In An Author Box With, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 8.8/10. Published 2024-10-17.
How severe is CVE-2024-9215?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2024-9215 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.