CVE-2025-12453: Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in OpenText

Routine

MEDIUM 6.1UPGRADE

CVE-2025-12453 is a medium-severity flaw (CVSS 6.1) affecting vertica. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in OpenText™ Vertica allows Reflected XSS. The vulnerability could lead to Reflected XSS attack of cross-site scripting in Vertica management console application.This issue affects Vertica: from 10.0 through 10.X, from 11.0 through 11.X, from 12.0 through 12.X, from 23.0 through 23.X, from 24.0 through 24.X, from 25.1.0 through 25.1.X, from 25.2.0

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 92%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-03-13
Last modified	2026-06-17

Publisher (CNA): OpenText · Vendor: opentext

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

Am I affected?

Timeline

2026-03-13 19:53 UTCPublished CVE record published
2026-06-17 08:32 UTCUpdated Record last modified

opentext vertica UPGRADE

Affected: >= 10.0.0-0 and < 25.4.0-0

Fixed in: 25.4.0-0

Safe to downgrade to: a release before 10.0.0-0

1. Check installed version

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

2. UPGRADE to 25.4.0-0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade vertica

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade vertica

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 10.0.0-0 (Debian / Ubuntu)

apt-cache madison vertica sudo apt install vertica=<VERSION_BEFORE_10.0.0-0> sudo apt-mark hold vertica

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list vertica sudo dnf downgrade vertica-<VERSION_BEFORE_10.0.0-0> sudo dnf versionlock add vertica

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-2025-12453?

vertica: upgrade to 25.4.0-0. Exact commands for each OS are on this page.

Is CVE-2025-12453 being exploited?

CVE-2025-12453 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-2025-12453 affect?

CVE-2025-12453 affects vertica. Severity is medium (CVSS 6.1). Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in OpenText™ Vertica allows Reflected XSS. The vulnerability could lead to Reflected XSS attack of cross-site scripting in Vertica managemen

How urgent is CVE-2025-12453?

Priority 23/100. No elevated risk signals yet.

Related CVEs

CVE-2025-12455 HIGH 7.5 UPGRADE Observable response discrepancy vulnerability in OpenText™ Vertica allows Password Brute Forcing. The vulner
CVE-2025-12454 MEDIUM 6.1 UPGRADE Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in OpenText

References

← Back to latest CVEs