CVE-2026-4299 json
MainWP Child Reports <= 2.2.6 - Missing Authorization to Authenticated (Subscriber+) Information Disclosure via Heartbeat API
published 2026-04-08 7 mo ago modified 2026-07-24 3 mo ago also EUVD-2026-20044
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
The MainWP Child Reports plugin for WordPress is vulnerable to Missing Authorization in all versions up to and including 2.2.6. This is due to a missing capability check in the heartbeat_received() function in the Live_Update class. This makes it possible for authenticated attackers, with Subscriber-level access and above, to obtain MainWP Child Reports activity log entries (including action summaries, user information, IP addresses, and contextual data) via the WordPress Heartbeat API by sending a crafted heartbeat request with the 'wp-mainwp-stream-heartbeat' data key.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 6 mo ago
Exploit prediction
0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected products
- mainwp MainWP Child Reports
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/7d4141bd-cd3f-44e9-b423-be03377a342d?source=cve
- plugins.trac.wordpress.org /browser/mainwp-child-reports/trunk/classes/class-live-update.php#L182
- plugins.trac.wordpress.org /browser/mainwp-child-reports/tags/2.2.6/classes/class-live-update.php#L182
- plugins.trac.wordpress.org /browser/mainwp-child-reports/trunk/classes/class-live-update.php#L44
- plugins.trac.wordpress.org /browser/mainwp-child-reports/tags/2.2.6/classes/class-live-update.php#L44
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3490157%40mainwp-child-reports&new=3490157%40mainwp-child-repor
Sources
- CVE List CVE-2026-4299
- NVD CVE-2026-4299
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.