CVE-2021-40888

Name: CVE-2021-40888
Creator: NVD / NIST
Published: 2021-10-11T11:15:09.673+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.62%

Last modified Jun 17, 2026

CVE-2021-40888 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Projectsend version r1295 is affected by Cross Site Scripting (XSS) due to lack of sanitization when echo output data in returnFilesIds() function. A low privilege user can call this function through process.php file and execute scripting code.. EPSS estimates a 0.62% chance of exploitation in the next 30 days.

Description

Projectsend version r1295 is affected by Cross Site Scripting (XSS) due to lack of sanitization when echo output data in returnFilesIds() function. A low privilege user can call this function through process.php file and execute scripting code.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.62%

45.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Projectsend	Projectsend	r1295

References

https://github.com/projectsend/projectsend/issues/995Exploit, Third Party Advisory
https://github.com/projectsend/projectsend/releases/tag/r1295Third Party Advisory
https://github.com/projectsend/projectsend/issues/995Exploit, Third Party Advisory
https://github.com/projectsend/projectsend/releases/tag/r1295Third Party Advisory

Timeline

Published: Oct 11, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-40888?

How severe is CVE-2021-40888?

CVE-2021-40888 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.62% probability of exploitation in the next 30 days.

How do I fix CVE-2021-40888?

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-2021-40888?

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

Scan your code now

Source: NVD / NIST