CVE-2021-22936 Cross-site scripting in Pulse Connect Secure
An authenticated administrator can be targeted by cross-site scripting attacks via unsanitized web parameters in Pulse Connect Secure.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-22936?
CVE-2021-22936 is a medium-severity cross-site scripting vulnerability in Ivanti Connect Secure, published on 16 Aug 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability in Pulse Connect Secure before 9.1R12 could allow a threat actor to perform a cross-site script attack against an authenticated administrator via an unsanitized web parameter.
Weakness: CWE-79
Which versions are affected by CVE-2021-22936?
It affects 2 products.
Products include Ivanti Connect Secure, Pulsesecure Pulse Connect Secure.
How do I fix CVE-2021-22936?
No fix has been published for CVE-2021-22936 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-2021-22936 being exploited?
There is no known exploitation of CVE-2021-22936 in the wild and no public exploit code.
Other vulnerabilities in Ivanti Connect Secure
- CVE-2021-22893 Ivanti Pulse Connect Secure Use-After-Free
- CVE-2019-11510 Ivanti Pulse Connect Secure Arbitrary File Read
- CVE-2024-21887 Ivanti Connect Secure and Policy Secure Command Injection
- CVE-2025-22457 Ivanti Connect Secure, Policy Secure, and ZTA Gateways Stack-Based Buffer Overflow
- CVE-2025-0282 Ivanti Connect Secure, Policy Secure, and ZTA Gateways Stack-Based Buffer Overflow
Sources
Also known as GHSA-5vfj-4g27-37g8.