PatchTheCVECVE-2021-24897: The Add Subtitle WordPress plugin through 1.1.0 does not sanitise or escape the sub-title field (available onl
CVE-2021-24897 is a medium-severity flaw (CVSS 5.4) affecting add subtitle. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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
Why this priority
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 5.4 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | Required |
| EPSS exploit chance | 0.6% (top 51%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2022-03-14 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2021-24897?
add subtitle: upgrade to newer than 1.1.0. Exact commands for each OS are on this page.
Is CVE-2021-24897 being exploited?
CVE-2021-24897 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2021-24897 affect?
CVE-2021-24897 affects add subtitle. Severity is medium (CVSS 5.4). 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 Sc
How urgent is CVE-2021-24897?
Priority 36/100. Public exploit reference