Vulnerability · Published Jul 30, 2026 · Assigned by VulnCheck

CVE-2026-57859e107 Second-Order Code Execution via eval()-Based Deserialization in e_array::unserialize()

High 7.5

In plain English

A high-severity unsafe deserialization in e107 from e107inc. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.5%top 56.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

e107 prior to version 2.3.8 contains a code execution vulnerability in the e_array deserialization handler that allows an attacker with out-of-band database write access to execute arbitrary PHP code by storing a crafted payload in the user_prefs column. The e_array::unserialize() function in e107_handlers/core_functions.php performs only a prefix check for the string 'array' before passing the stored value to eval(), causing automatic PHP execution whenever the affected user's preferences are materialized through e_user_pref::load().

Affected products (as reported)

Vendor	Product	Versions
e107inc	e107	0 – through 2.3.7

Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

GitHub Security Advisory (GHSA-568x-w5qj-vr7c) vendor-advisory
Patch Commit patch
Product Repository technical-description
https://www.vulncheck.com/advisories/e107-second-order-code-execution-via-eval-based-deserialization-in-e-array-unserialize third-party-advisory