CVE-2021-40888

5.4 MEDIUM

Projectsend version r1295 is affected by Cross Site Scripting (XSS) due to lack of sanitization when echo output data in returnFilesIds()...

Published: 2021-10-11 · Last updated: 2026-06-17

Severity and scoring

CVSS: 5.4 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE: CWE-79

Affected products

Vendor	Product
projectsend	projectsend

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-40888
[Exploit reference]https://github.com/projectsend/projectsend/issues/995
[Other]https://github.com/projectsend/projectsend/releases/tag/r1295
[Exploit reference]https://github.com/projectsend/projectsend/issues/995
[Other]https://github.com/projectsend/projectsend/releases/tag/r1295

Related CVEs

Same vendor

CVE-2021-40887 — Projectsend version r1295 is affected by a directory traversal vulnerability (9.8 CRITICAL)
CVE-2021-40886 — Projectsend version r1295 is affected by a directory traversal vulnerability (6.5 MEDIUM)
CVE-2021-40884 — Projectsend version r1295 is affected by sensitive information disclosure (8.1 HIGH)

Same CWE

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CVE-2026-54198 — Unauthenticated Cross Site Scripting (XSS) in Media LIbrary Assistant <= 3.35 versions (7.1 HIGH)
CVE-2026-54191 — Unauthenticated Cross Site Scripting (XSS) in Pods <= 3.3.8 versions (7.1 HIGH)
CVE-2026-39437 — Unauthenticated Cross Site Scripting (XSS) in Min Max Step Quantity Limits Manager for WooCommerce <= 5.2.2 versions (7.1 HIGH)