CVE-2021-24309
Weekly Schedule < 3.4.3 - Authenticated Stored XSS
The "Schedule Name" input in the Weekly Schedule WordPress plugin before 3.4.3 general options did not properly sanitize input, allowing a user to inject javascript code using the <script> HTML tags and cause a stored XSS issue
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 "Schedule Name" input in the Weekly Schedule WordPress plugin before 3.4.3 general options did not properly sanitize input, allowing a user to inject javascript code using the <script> HTML tags and cause a stored XSS issue
- Record
CVE-2021-24309- 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
Weekly Schedule < 3.4.3 - Authenticated Stored XSS
The "Schedule Name" input in the Weekly Schedule WordPress plugin before 3.4.3 general options did not properly sanitize input, allowing a user to inject javascript code using the <script> HTML tags and cause a stored XSS issue
- Record
CVE-2021-24309- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-11223 No score
The "Schedule Name" input in the Weekly Schedule WordPress plugin before 3.4.3 general options did not properly sanitize input, allowing a user to inject javascript code using the <script> HTML tags and cause a stored XSS issue
- Record
EUVD-2021-11223- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-c864-88h8-cf2j No score
The "Schedule Name" input in the Weekly Schedule WordPress plugin before 3.4.3 general options...
The "Schedule Name" input in the Weekly Schedule WordPress plugin before 3.4.3 general options did not properly sanitize input, allowing a user to inject javascript code using the <script> HTML tags and cause a stored XSS issue
- Record
GHSA-c864-88h8-cf2j- 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-2021-24309 is a medium vulnerability (CVSS 5.4) in Unknown Weekly Schedule, published June 1, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.65%, the 51st percentile. No source names a fixed version.