CVE-2021-35243 HTTP PUT & DELETE Methods Enabled
Attackers can exploit enabled HTTP PUT and DELETE methods to modify or delete data, compromising integrity in SolarWinds Web Help Desk.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-35243?
CVE-2021-35243 is a medium-severity vulnerability in SolarWinds Web Help Desk, published on 23 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The HTTP PUT and DELETE methods were enabled in the Web Help Desk web server (12.7.7 and earlier), allowing users to execute dangerous HTTP requests. The HTTP PUT method is normally used to upload data that is saved on the server with a user-supplied URL. While the DELETE method requests that the origin server removes the association between the target resource and its current functionality. Improper use of these methods may lead to a loss of integrity.
Weakness: CWE-749
Which versions are affected by CVE-2021-35243?
It affects 1 product.
Products include Solarwinds Web Help Desk.
How do I fix CVE-2021-35243?
No fix has been published for CVE-2021-35243 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-35243 being exploited?
There is no known exploitation of CVE-2021-35243 in the wild and no public exploit code.
Other vulnerabilities in SolarWinds Web Help Desk
- CVE-2025-40551 SolarWinds Web Help Desk Deserialization of Untrusted Data
- CVE-2025-26399 SolarWinds Web Help Desk Deserialization of Untrusted Data
- CVE-2024-28986 SolarWinds Web Help Desk Deserialization of Untrusted Data
- CVE-2024-28987 SolarWinds Web Help Desk Hardcoded Credential
- CVE-2025-40536 SolarWinds Web Help Desk Security Control Bypass
Sources
Also known as GHSA-cj38-v3pg-8cgq.