CVE-2026-81809 Paytm Payment Gateway < 2.8.9 - Unauthenticated SQLi via Payment Callback
Unauthenticated attackers can perform SQL injection via payment callbacks if the gateway is enabled without credentials, risking data exposure.
- 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-2026-81809?
CVE-2026-81809 is a high-severity SQL injection vulnerability in Unknown Paytm Payment Gateway, published on 1 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Paytm Payment Gateway WordPress plugin before 2.8.9 does not properly escape data taken from payment callbacks before using it in a SQL statement, and the integrity check on those callbacks can be forged when the gateway is enabled without credentials, allowing unauthenticated users to perform SQL injection attacks.
Weakness: CWE-89
Which versions are affected by CVE-2026-81809?
How do I fix CVE-2026-81809?
No fix has been published for CVE-2026-81809 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-81809 being exploited?
There is no known exploitation of CVE-2026-81809 in the wild and no public exploit code.
Sources
Also known as GHSA-x2j9-6g95-5p2v.