CVE-2026-24037: Horilla is a free and open source Human Resource Management System (HRMS)

Routine

MEDIUM 4.8DOWNGRADE

CVE-2026-24037 is a medium-severity flaw (CVSS 4.8) affecting horilla. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Horilla is a free and open source Human Resource Management System (HRMS). In version 1.4.0, the has_xss() function attempts to block XSS by matching input against a set of regex patterns. However, the regexes are incomplete and context-agnostic, making them easy to bypass. Attackers are able to redirect users to malicious domains, run external JavaScript, and steal CSRF tokens that can be used to craft CSRF attacks against admins. This issue has

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-01-22
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: horilla

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-01-22 04:15 UTCPublished CVE record published
2026-06-17 10:22 UTCUpdated Record last modified

horilla horilla DOWNGRADE

Affected: 1.4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4.0

1. Check installed version

apt-cache policy horilla || rpm -q horilla || horilla --version

2. No fixed release: DOWNGRADE to a release before 1.4.0 (Debian / Ubuntu)

apt-cache madison horilla sudo apt install horilla=<VERSION_BEFORE_1.4.0> sudo apt-mark hold horilla

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list horilla sudo dnf downgrade horilla-<VERSION_BEFORE_1.4.0> sudo dnf versionlock add horilla

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-24037?

horilla: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-24037 being exploited?

CVE-2026-24037 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-24037 affect?

CVE-2026-24037 affects horilla. Severity is medium (CVSS 4.8). Horilla is a free and open source Human Resource Management System (HRMS). In version 1.4.0, the has_xss() function attempts to block XSS by matching input against a set of regex patterns. However, the regexes are incomplete and context-agn

How urgent is CVE-2026-24037?

Priority 26/100. Public exploit reference

Related CVEs

CVE-2025-59832 CRITICAL 9.9 UPGRADE Horilla is a free and open source Human Resource Management System (HRMS)
CVE-2025-48868 HIGH 7.2 DOWNGRADE Horilla is a free and open source Human Resource Management System (HRMS)
CVE-2026-3050 LOW 3.5 UPGRADE A flaw has been found in horilla-opensource horilla up to 1.0.2
CVE-2026-3049 MEDIUM 4.3 UPGRADE A vulnerability was detected in horilla-opensource horilla up to 1.0.2
CVE-2026-24039 MEDIUM 4.3 DOWNGRADE Horilla is a free and open source Human Resource Management System (HRMS)

References

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