CVE-2026-57859

HIGH
MEDIUM Priority: 0.04 BB Relevance: 66/100
Published: 2026-07-30 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: High
PR: Low
UI: None
S: X
AT: None
VC: High
VI: High
VA: High

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().

Weakness Classification (1)

Bug Bounty Relevance

66 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.7 / 10.0 v4.0
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.51%
Raw Score 0.005120
Percentile 43.7%
Date 2026-11-02

EPSS Trend

2026-11-02
0.00512
2026-11-01
0.00512
2026-10-31
0.00512
2026-10-30
0.00512
2026-10-29
0.00512
2026-10-28
0.00512

Intelligence Sources

nvd ref →