CVE-2025-55064: Priority Web · Cross-site Scripting
Affects Priority WebSource CVE Database V5
Not known to be exploited · CVSS 4.8 Medium.
Data as of 26 Oct 2026, 06:26 UTC
- 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:NExploitation evidence
Disclosed: evidence found.
CVE published 29 Dec 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Priority Web | Affected
| 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')