CVE-2023-51299: PHPJabbers Hotel Booking System · Cross-site Scripting
Source CVE Database V5
Not known to be exploited · CVSS 6.1 Medium.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 32% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 19 Feb 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 26 Oct 2026.
What to do
AI-suggested
Organizations should immediately review and sanitize all user inputs for the affected parameters (name, plugin_sms_api_key, plugin_sms_country_code, title) to ensure that HTML or script code cannot be injected. Implement strict output encoding on all user-supplied data before rendering it in the browser to prevent execution of injected HTML. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts. Monitor web application logs for unusual input patterns or repeated injection attempts. If possible, isolate the booking system from other critical infrastructure to limit potential lateral movement. Engage with PHPJabbers for official patches or updates and apply them promptly once available. Conduct regular security assessments and penetration testing focused on injection vulnerabilities. Educate staff and users about phishing risks associated with malicious links that could exploit this vulnerability.
Description
PHPJabbers Hotel Booking System v4.0 is vulnerable to HTML Injection in the "name, plugin_sms_api_key, plugin_sms_country_code, title, plugin_sms_api_key, title" parameters.