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CVE-2025-55064VulnerabilityPublished

CVE-2025-55064: Priority Web · Cross-site Scripting

Affects Priority WebSource CVE Database V5

0

Not known to be exploited · CVSS 4.8 Medium.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score
4.8Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Priority WebAffected
  • <=24.1
Fixed in–

AI-suggested

To mitigate CVE-2025-55064, European organizations should implement the following specific measures: 1) Apply any available patches or updates from Priority as soon as they are released; 2) Implement strict input validation and output encoding on all user-supplied data within Priority Web to prevent script injection; 3) Restrict user privileges to the minimum necessary, especially limiting high-privilege accounts that can exploit this vulnerability; 4) Employ Content Security Policy (CSP) headers to reduce the impact of potential XSS attacks by restricting script execution sources; 5) Conduct regular security awareness training to reduce the risk of successful social engineering that could trigger user interaction; 6) Monitor web application logs for unusual activity indicative of attempted XSS exploitation; 7) Use web application firewalls (WAFs) configured to detect and block XSS payloads targeting Priority Web; 8) Segregate Priority Web environments from critical network segments to limit lateral movement in case of compromise.

Description

CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting')

References

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