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Back to active CVEs
Medium · CVSS 5.1CVE-2026-56128

pfSense Plus < 26.07 / CE < 2.9.0 Stored XSS via firewall_schedule_edit.phpCVE-2026-56128

Answer in brief

CVE-2026-56128 records a Medium severity (CVSS 5.1) vulnerability in pfSense Plus < 26.07 / CE < 2.9.0 Stored XSS via firewall_schedule_edit.php. The current sources do not mark it as known exploited. The current feed maps Netgate/pfSense CE (generic), Netgate/pfSense CE (generic), Netgate/pfSense Plus (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 Sep 3, 2026Updated Oct 1, 2026Source checked Oct 18, 2026First seen by HOL Sep 3, 2026Material review Oct 1, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.1
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 5.1. 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 Netgate/pfSense CE (generic), Netgate/pfSense CE (generic), Netgate/pfSense Plus (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Netgate/pfSense CEgeneric>=0 <2.9.02.9.0
Netgate/pfSense CEgeneric*Not reported
Netgate/pfSense Plusgeneric>=0 <26.0726.07

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Netgate/pfSense CE, Netgate/pfSense CE, Netgate/pfSense Plus.
  2. 2Review the reported fix. Update Netgate/pfSense CE to 2.9.0; Netgate/pfSense Plus to 26.07 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 3, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 1, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 3, 2026

Sources and claim methodology

  • Source referencedocs.netgate.com
  • Source referencedocs.netgate.com
  • Source referencedocs.netgate.com
  • Source referencevulncheck.com
Upstream source description

pfSense Plus before 26.07 and CE before 2.9.0 allow authenticated users with the Firewall: Schedules: Edit privilege to inject arbitrary JavaScript via the descr parameter in /firewall_schedule_edit.php. The schedule description is stored without HTML sanitization and subsequently inserted into an HTML attribute value in /firewall_rules.php with only single-quote escaping applied, permitting double-quote breakout. The payload executes in the browser of any user with the Firewall: Rules privilege who views the rules list with the affected schedule attached.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Remote Code Execution via JDBC User Store Configuration in Multiple WSO2 Products Allows Arbitrary Code ExecutionSame generic ecosystem
  • Gitea OpenID account linking without session bindingSame generic ecosystem
  • Gitea panic on the repositories route of individual usersSame generic ecosystem
  • Gitea Actions artifact v4 API unbounded request bodySame generic ecosystem
  • Gitea cross-site request forgery on repository topicsSame generic ecosystem
  • Gitea reactions accepted on locked issues and commentsSame generic ecosystem

Record context

Vulnerability class
XSS
EPSS
Not reported
CWE IDs
CWE-79
Source
CVE List V5
Source checked
Oct 18, 2026
References
4 linked sources
Open source record