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VulnerabilityPublished

CVE-2025-12453: OpenText™ Vertica · Cross-site Scripting

Affects OpenText™ VerticaSource CVE Database V5

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Not known to be exploited · CVSS 5.1 Medium.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 4.0 base score
5.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y/R:U

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
OpenText™VerticaAffected
  • >=10.0 <=10.x
  • >=11.0 <=11.x
  • >=12.0 <=12.x
  • >=23.0 <=23.x
  • >=24.0 <=24.x
  • >=25.1.0 <=25.1.x
  • >=25.2.0 <=25.2.x
  • >=25.3.0 <=25.3.x
Fixed in–

AI-suggested

  1. Apply official patches or updates from OpenText as soon as they become available to address CVE-2025-12453.
  2. Implement strict input validation and output encoding on all user-supplied data within the Vertica management console to prevent script injection.
  3. Deploy Web Application Firewalls (WAFs) with rules tailored to detect and block reflected XSS attack patterns targeting Vertica URLs.
  4. Restrict access to the Vertica management console to trusted networks and enforce multi-factor authentication to reduce the risk of unauthorized access.
  5. Educate users and administrators about phishing and social engineering risks to minimize the likelihood of clicking malicious links.
  6. Monitor logs and network traffic for suspicious requests that may indicate attempted exploitation.
  7. Consider isolating the management console behind VPNs or zero-trust network architectures to limit exposure.
  8. Review and harden browser security settings for users accessing the console, such as disabling unnecessary scripting capabilities or using browser extensions that block XSS attacks.
  9. Conduct regular security assessments and penetration testing focused on web interface vulnerabilities to proactively identify and remediate issues.

Description

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 through 25.2.X, from 25.3.0 through 25.3.X.

References

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