CVE-2021-24897
Add Subtitle <= 1.1.0 - Contributor+ Stored Cross-Site Scripting
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
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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
- Record
CVE-2021-24897- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Add Subtitle <= 1.1.0 - Contributor+ Stored Cross-Site Scripting
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
- Record
CVE-2021-24897- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-11809 No score
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
- Record
EUVD-2021-11809- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8hmm-58xr-mxjc
The Add Subtitle WordPress plugin through 1.1.0 does not sanitise or escape the sub-title field ...
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
- Record
GHSA-8hmm-58xr-mxjc- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-24897 is a medium vulnerability (CVSS 5.4) in Unknown Add Subtitle, published March 14, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.60%, the 49th percentile. No source names a fixed version.