HOMEVULNERABILITIESCVE-2026-4299
MEDIUM

CVE-2026-4299

CWE-862Published: April 8, 2026· Updated: Apr 8, 2026

5.3
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:10.4th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-4299 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

Mentioned vendors (from description):
WordPress
CPE data not yet available in NVD for this CVE.

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

All References (6)

→
https://plugins.trac.wordpress.org/browser/mainwp-child-reports/tags/2.2.6/classes/class-live-update.php#L182
→
https://plugins.trac.wordpress.org/browser/mainwp-child-reports/tags/2.2.6/classes/class-live-update.php#L44
→
https://plugins.trac.wordpress.org/browser/mainwp-child-reports/trunk/classes/class-live-update.php#L182
→
https://plugins.trac.wordpress.org/browser/mainwp-child-reports/trunk/classes/class-live-update.php#L44
→
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3490157%40mainwp-child-reports&new=3490157%40mainwp-child-reports&sfp_email=&sfph_mail=
→
https://www.wordfence.com/threat-intel/vulnerabilities/id/7d4141bd-cd3f-44e9-b423-be03377a342d?source=cve

Quick Facts

CVE IDCVE-2026-4299
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-862
CISA KEVNo
EPSS (30d)0.03%
PublishedApr 8, 2026

Related CVEs (CWE-862)

CVE-2026-0092
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CVE-2025-30416
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CVE-2026-2031
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CVE-2026-34976
10.0
CVE-2026-33712
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CVE-2026-44442
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Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-4299 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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