XSS in Maptiler Tileserver PHP
CVE-2025-44136
MapTiler Tileserver-php v2.0 is vulnerable to Cross Site Scripting (XSS). The GET parameter "layer" is reflected in an error message without html encoding. This leads to XSS and allows an unauthenticated attacker to execute arbitrary HTML or JavaScript code on a victim's browser.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.025 (84.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000
Affected products
- Maptiler Tileserver PHP — versions 2.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/maptiler/tileserver-php/issues/167 (Exploit, Issue Tracking)
- github.com/mheranco/CVE-2025-44136 (Exploit)
Frequently asked questions
- What is CVE-2025-44136?
- CVE-2025-44136 is a critical-severity vulnerability in Maptiler Tileserver PHP, classified under Cross-site Scripting. CVSS score: 9.8/10. Published 2025-07-29.
- How severe is CVE-2025-44136?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2025-44136 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.