CVE-2021-24897

Name: CVE-2021-24897
Creator: NVD / NIST
Published: 2022-03-14T15:15:08.507+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.60%

Last modified Jun 17, 2026

CVE-2021-24897 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. The Add Subtitle WordPress plugin through 1.1.0 does not sanitise or escape the sub-title field (available only with classic editor) when output in the page, which could allow users with a role as low as contributor to perform Cross-Site Scripting attacks. EPSS estimates a 0.60% chance of exploitation in the next 30 days.

Description

The Add Subtitle WordPress plugin through 1.1.0 does not sanitise or escape the sub-title field (available only with classic editor) when output in the page, which could allow users with a role as low as contributor to perform Cross-Site Scripting attacks

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

0.60%

43.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Viitorcloud	Add Subtitle	<= 1.1.0

References

https://wpscan.com/vulnerability/a0dd1da8-f8d2-453d-a2f2-711a49fb6466Exploit, Third Party Advisory
https://wpscan.com/vulnerability/a0dd1da8-f8d2-453d-a2f2-711a49fb6466Exploit, Third Party Advisory

Timeline

Published: Mar 14, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-24897?

How severe is CVE-2021-24897?

CVE-2021-24897 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.60% probability of exploitation in the next 30 days.

How do I fix CVE-2021-24897?

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-2021-24897?

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

Scan your code now

Source: NVD / NIST