CVE-2026-7011

MaxSite CMS Antispam Plugin plugin_antispam cross site scripting

LOW
2.4
CVSS Score
Published: April 26, 2026 at 12:30 AM UTC
Updated: October 26, 2026 at 10:10 PM UTC
1 product affected across 1 vendorMaxSite CMS

Using CMS by MaxSite?

Get instant alerts when new vulnerabilities affect CMS - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
LOW2.4
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

A weakness has been identified in MaxSite CMS up to 109.3. Affected by this vulnerability is an unknown functionality of the file /admin/plugin_antispam of the component Antispam Plugin. Executing a manipulation of the argument f_logging_file can lead to cross site scripting. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 109.4 addresses this issue. This patch is called 8a3946bd0a54bfb72a4d57179fcd253f2c550cd7. Upgrading the affected component is advised. The vendor was informed early about this issue. They classify it as a "Self-XSS". They deployed a countermeasure: "Nevertheless, we consider this a violation of secure coding standards. The lack of filtering via `htmlspecialchars()` has already been fixed in the latest patch to prevent incorrect data display."

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vendor states this is fixed in 109.4 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

2.4LOWVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79CWE-94

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card