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

High · CVSS 7.7CVE-2026-57859

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

Answer in brief

CVE-2026-57859 records a High severity (CVSS 7.7) vulnerability in e107 Second-Order Code Execution via eval()-Based Deserialization in e_array::unserialize(). The current sources do not mark it as known exploited. The current feed maps e107inc/e107 (generic), e107inc/e107 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 30, 2026Updated Aug 14, 2026Source checked Sep 28, 2026First seen by HOL Aug 14, 2026Material review Aug 14, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.7
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Not reported

Why this deserves its current priority

CVSS is 7.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps e107inc/e107 (generic), e107inc/e107 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
e107inc/e107generic	0	Not reported
e107inc/e107generic	>=0 <=2.3.7	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for e107inc/e107, e107inc/e107.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Jul 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 14, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 14, 2026

Sources and claim methodology

Upstream source 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().

Quoted source text, attributed separately from HOL analysis.