CVE-2021-41976

Name: CVE-2021-41976
Creator: NVD / NIST
Published: 2021-10-08T16:15:08.57+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.00%

Last modified Jun 17, 2026

CVE-2021-41976 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Tad Uploader edit book list function is vulnerable to authorization bypass, thus remote attackers can use the function to amend the folder names in the book list without logging in.. EPSS estimates a 1.00% chance of exploitation in the next 30 days.

Description

Tad Uploader edit book list function is vulnerable to authorization bypass, thus remote attackers can use the function to amend the folder names in the book list without logging in.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

1.00%

58.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Tad Uploader Project	Tad Uploader	< 3.5.4

References

https://www.twcert.org.tw/tw/cp-132-5175-a2f8d-1.htmlThird Party Advisory
https://www.twcert.org.tw/tw/cp-132-5175-a2f8d-1.htmlThird Party Advisory

Timeline

Published: Oct 8, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-41976?

Tad Uploader edit book list function is vulnerable to authorization bypass, thus remote attackers can use the function to amend the folder names in the book list without logging in.

How severe is CVE-2021-41976?

CVE-2021-41976 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.00% probability of exploitation in the next 30 days.

How do I fix CVE-2021-41976?

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-2021-41976?

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

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Source: NVD / NIST