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VulnerabilityPublished

CVE-2025-44136: tileserver-php · Cross-site Scripting

Affects tileserver-phpSource CVE Database V5

0

Not known to be exploited · public detection template (Nuclei) · CVSS 9.8 Critical.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
2.6% chance of exploitation in 30 days – higher than 85% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 29 Jul 2025

  2. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

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

    Not in CISA KEV and no source reports exploitation

  4. 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
GitHubmaptiler/tileserver-phppkg:github/maptiler/tileserver-phpOther threatsAffected
  • =2.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

To mitigate this vulnerability, organizations should immediately review and update their MapTiler Tileserver-php installations. In the interim, implement strict input validation and output encoding for the "layer" parameter to ensure any user-supplied data is properly sanitized before being reflected in error messages. Employ Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts in browsers accessing the service. Web Application Firewalls (WAFs) can be configured to detect and block malicious payloads targeting the "layer" parameter. Additionally, conduct thorough security testing of the tile server integration points to identify and remediate similar injection flaws. Educate developers and administrators on secure coding practices related to input handling and error message construction. Finally, monitor logs for suspicious requests containing unusual or script-like content in the "layer" parameter to detect attempted exploitation.

Description

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.

References

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