Is CVE-2026-4350 actively exploited?

No active exploitation of CVE-2026-4350 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-4350 be exploited remotely?

Yes. CVE-2026-4350 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-4350?

CVE-2026-4350 has a CVSS score of 8.1 (HIGH).

HOME VULNERABILITIESCVE-2026-4350

HIGH

CVE-2026-4350

CWE-22Published: April 3, 2026· Updated: Apr 3, 2026

8.1

CVSS v3.1

EPSS:0.10%probability of exploitation in 30 daysPercentile:27.7th

Official Description

The Perfmatters plugin for WordPress is vulnerable to arbitrary file deletion via path traversal in all versions up to, and including, 2.5.9.1. This is due to the `PMCS::action_handler()` method processing the `$_GET['delete']` parameter without any sanitization, authorization check, or nonce verification. The unsanitized filename is concatenated with the storage directory path and passed to `unlink()`. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary files on the server by using `../` path traversal sequences, including `wp-config.php` which would force WordPress into the installation wizard and allow full site takeover.

NVD Source

Technical Analysis

CVE-2026-4350 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.Low

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected Vendors & Products

Mentioned vendors (from description):

WordPressPHP

CPE data not yet available in NVD for this CVE.

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Exploit-DB

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GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

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News & Research Mentioning CVE-2026-4350

New DirtyClone Linux Kernel Flaw Lets Local Users Gain Root via Cloned Packets

The Hacker News· Jun 26, 2026

DirtyClone is a new Linux kernel privilege escalation in the DirtyFrag family. JFrog Security Research published a working exploit walkthrough for the flaw on June 25, the first public demonstration for this variant. Tracked as CVE-2026-43503 (CVSS 8.8), it lets a local user corrupt file-backed memory through a cloned network packet and gain root. The patch landed in [xlite_meta score:50 src:The Hacker News xlite_fp:38843c6149e4e6186a1f378a6795c98b0f52a11bba96a345d08045b650d83722]

New ‘Dirty Frag’ Linux Vulnerability Possibly Exploited in Attacks

SecurityWeek· May 11, 2026

Also called Copy Fail 2 and tracked as CVE-2026-43284 and CVE-2026-43500, the exploit was disclosed before a patch was released. The post New ‘Dirty Frag’ Linux Vulnerability Possibly Exploited in Attacks appeared first on SecurityWeek. [xlite_meta score:53 src:SecurityWeek xlite_fp:118e916be01802bcca136a576e89474e9773fbe402418644bc1826bf9c1c5b2e]