XSS in Glpi-Project Glpi
CVE-2021-21312
GLPI is open source software which stands for Gestionnaire Libre de Parc Informatique and it is a Free Asset and IT Management Software package. In GLPI before verison 9.5.4, there is a vulnerability within the document upload function (Home > Management > Documents > Add, or /front/document.form.php endpoint), indeed one of the form field: "Web Link" is not properly sanitized and a malicious user (who has document upload rights) can use it to deliver JavaScript payload. For example if you use the following payload: " accesskey="x" onclick="alert(1)" x=", the content will be saved within the database without any control. And then once you return to the summary documents page, by clicking on the "Web Link" of the newly created file it will create a new empty tab, but on the initial tab the pop-up "1" will appear.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.006 (44.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:N/I:H/A:N.
Affected products
- Glpi-project Glpi — versions < 9.5.4
Weakness classification (CWE)
References
- security-advisories@github.com (Third Party Advisory, x_refsource_MISC, Release Notes)
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-21312?
- CVE-2021-21312 is a medium-severity vulnerability in Glpi-Project Glpi, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-03-03.
- How severe is CVE-2021-21312?
- Medium severity. CVSS v3 base score is 5.4 out of 10.