CVE-2026-17522 Newsletters < 4.17 - Arbitrary Plugin Option Update via CSRF
Attackers can trick administrators into updating arbitrary plugin settings, including API credentials, via Cross-Site Request Forgery.
- 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-2026-17522?
CVE-2026-17522 is a medium-severity vulnerability in Unknown Newsletters, published on 29 Aug 2026. 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
The Newsletters WordPress plugin before 4.17 does not perform any nonce or capability check when saving one of its settings screens, and writes every submitted parameter into its own options, allowing attackers to make a logged in administrator overwrite arbitrary Newsletters WordPress plugin before 4.17 settings, including the credential protecting its API, via a Cross-Site Request Forgery attack.
Weakness: CWE-352
Which versions are affected by CVE-2026-17522?
How do I fix CVE-2026-17522?
No fix has been published for CVE-2026-17522 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-17522 being exploited?
There is no known exploitation of CVE-2026-17522 in the wild and no public exploit code.
Sources
Also known as GHSA-mx7c-44xm-6gm6.