CVE-2020-15177

Name: CVE-2020-15177
Creator: NVD / NIST
Published: 2020-10-07T19:15:12.797+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.76%

Last modified Jun 17, 2026

CVE-2020-15177 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. In GLPI before version 9.5.2, the `install/install.php` endpoint insecurely stores user input into the database as `url_base` and `url_base_api`. These settings are referenced throughout the application and allow for vulnerabilities like Cross-Site Scripting and Insecure Redirection Since authentication is not required to perform these changes,anyone could point these fields at malicious websites or form input in a way to trigger XSS. EPSS estimates a 0.76% chance of exploitation in the next 30 days.

Description

In GLPI before version 9.5.2, the `install/install.php` endpoint insecurely stores user input into the database as `url_base` and `url_base_api`. These settings are referenced throughout the application and allow for vulnerabilities like Cross-Site Scripting and Insecure Redirection Since authentication is not required to perform these changes,anyone could point these fields at malicious websites or form input in a way to trigger XSS. Leveraging JavaScript it's possible to steal cookies, perform actions as the user, etc. The issue is patched in version 9.5.2.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

0.76%

50.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Glpi-Project	Glpi	< 9.5.2

References

https://github.com/glpi-project/glpi/commit/a8109d4ee970a222faf48cf48fae2d2f06465796Patch, Third Party Advisory
https://github.com/glpi-project/glpi/security/advisories/GHSA-prvh-9m4h-4m79Third Party Advisory
https://github.com/glpi-project/glpi/commit/a8109d4ee970a222faf48cf48fae2d2f06465796Patch, Third Party Advisory
https://github.com/glpi-project/glpi/security/advisories/GHSA-prvh-9m4h-4m79Third Party Advisory

Timeline

Published: Oct 7, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-15177?

How severe is CVE-2020-15177?

CVE-2020-15177 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.76% probability of exploitation in the next 30 days.

How do I fix CVE-2020-15177?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-15177?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST