CVE-2023-2261: melapress wp_activity_log Missing Authorization
Vulnerability summary
CVE-2023-2261 is a medium (CVSS 4.3) Missing Authorization vulnerability in melapress wp_activity_log. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 45% of scored vulnerabilities.
Timeline
- 09-06-2023PublishedVulnerability first disclosed.
- 08-04-2026Last modifiedVulnerability information updated.
Description
The WP Activity Log plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the handle_ajax_call function in versions up to, and including, 4.5.0. This makes it possible for authenticated attackers, with subscriber-level access or higher, to obtain a list of users with accounts on the site. This includes ids, usernames and emails.
CVSS metrics
3 scores · 3 sources · 1 version- NVDNIST4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- wordfenceSource4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS trend
Probability
0.55%
Chance of exploitation in the next 30 days
Percentile
45%
Versus all other CVEs
30-day change
0.00 pp
From 0.55% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Wordpress2 products
- wp-security-audit-log≤ 4.5.0 (fixed in 4.5.2)
- wp-security-audit-log-premium≤ 4.5.0 (fixed in 4.5.2)
Wpwhitesecurity2 products
- wp_activity_log≤ 4.5.0
- wp activity log premium≤ 4.5.0
Melapress1 product
- wp_activity_log≤ 4.5.0
3 vendors · 5 products
References
4 links- plugins.trac.wordpress.org/browser/…Broken Link