CVE-2021-24309 Weekly Schedule < 3.4.3 - Authenticated Stored XSS
Authenticated attackers can inject malicious JavaScript via the Schedule Name field in the Weekly Schedule plugin, leading to stored XSS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-24309?
CVE-2021-24309 is a medium-severity cross-site scripting vulnerability in Unknown Weekly Schedule, published on 1 Jun 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
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
Weakness: CWE-79
Which versions are affected by CVE-2021-24309?
It affects 1 product.
Products include Weekly Schedule Project Weekly Schedule.
How do I fix CVE-2021-24309?
No fix has been published for CVE-2021-24309 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2021-24309 being exploited?
There is no known exploitation of CVE-2021-24309 in the wild and no public exploit code.
Sources
Also known as GHSA-c864-88h8-cf2j.