CVE-2023-27292: An open redirect vulnerability exposes OpenCATS to template injection due to improper validation of user-suppl

This month

MEDIUM 5.4DOWNGRADE

CVE-2023-27292 is a medium-severity flaw (CVSS 5.4) affecting opencats. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An open redirect vulnerability exposes OpenCATS to template injection due to improper validation of user-supplied GET parameters.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-601
Published	2023-02-28
Last modified	2026-06-17

Publisher (CNA): Tenable Network Security, Inc. · Vendor: opencats

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

Am I affected?

Timeline

2023-02-28 17:15 UTCPublished CVE record published
2026-06-17 05:44 UTCUpdated Record last modified

opencats opencats DOWNGRADE

Affected: 0.9.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.9.6

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.9.6 (Debian / Ubuntu)

apt-cache madison opencats sudo apt install opencats=<VERSION_BEFORE_0.9.6> sudo apt-mark hold opencats

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

dnf --showduplicates list opencats sudo dnf downgrade opencats-<VERSION_BEFORE_0.9.6> sudo dnf versionlock add opencats

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: OpenCATS - Open Redirect

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-2023-27292?

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

Is CVE-2023-27292 being exploited?

CVE-2023-27292 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-2023-27292 affect?

CVE-2023-27292 affects opencats. Severity is medium (CVSS 5.4). An open redirect vulnerability exposes OpenCATS to template injection due to improper validation of user-supplied GET parameters.

How urgent is CVE-2023-27292?

Priority 40/100. Public exploit reference

Related CVEs

CVE-2023-27295 MEDIUM 5.4 DOWNGRADE Cross-site request forgery is facilitated by OpenCATS failure to require CSRF tokens in POST requests
CVE-2023-27294 MEDIUM 5.4 DOWNGRADE Improper neutralization of input during web page generation allows an authenticated attacker with access to a
CVE-2023-27293 MEDIUM 6.1 DOWNGRADE Improper neutralization of input during web page generation allows an unauthenticated attacker to submit malic
CVE-2023-26847 MEDIUM 5.4 DOWNGRADE A stored cross-site scripting (XSS) vulnerability in OpenCATS v0.9.7 allows attackers to execute arbitrary web
CVE-2023-26846 MEDIUM 5.4 DOWNGRADE A stored cross-site scripting (XSS) vulnerability in OpenCATS v0.9.7 allows attackers to execute arbitrary web

References

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