Unknown severity · Source severity not reportedCVE-2026-115299

Contact Form by Supsystic < 1.11.1 - Arbitrary Plugin Settings Update via CSRFCVE-2026-115299

Answer in brief

CVE-2026-115299 records a Unknown severity vulnerability in Contact Form by Supsystic < 1.11.1 - Arbitrary Plugin Settings Update via CSRF. The current sources do not mark it as known exploited. The current feed maps Unknown/Contact Form by Supsystic (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 Oct 29, 2026Updated Oct 29, 2026Source checked Oct 29, 2026First seen by HOL Oct 29, 2026Material review Oct 29, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. 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 Unknown/Contact Form by Supsystic (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unknown/Contact Form by Supsysticgeneric	>=0 <1.11.1	1.11.1

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unknown/Contact Form by Supsystic.
Review the reported fix. Update Unknown/Contact Form by Supsystic to 1.11.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Oct 29, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 29, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 29, 2026

Sources and claim methodology

Source referencewpscan.com

Upstream source description

The Contact Form by Supsystic WordPress plugin before 1.11.1 does not verify a CSRF nonce before saving its mail settings, allowing an attacker to overwrite the site's outbound mail configuration, including the SMTP server, its credentials and the notification recipient, by tricking a logged-in administrator into visiting a crafted page, which can route the Contact Form by Supsystic WordPress plugin before 1.11.1's contact-form notifications through infrastructure the attacker controls.

Quoted source text, attributed separately from HOL analysis.