CVE-2026-111278 NivoCart through 2.5.1 CAPTCHA Bypass via Answer Disclosed in Page HTML
Attackers can bypass CAPTCHA protection in NivoCart by extracting the answer from HTML, enabling automated spam and abuse.
- 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-2026-111278?
CVE-2026-111278 is a medium-severity vulnerability in nivocart, published on 15 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
NivoCart through 2.5.1 contains a CAPTCHA bypass vulnerability that allows unauthenticated attackers to defeat form protection because the expected code is printed as plain text in the HTML. Attackers can fetch protected forms, extract the captcha_image value with a pattern match, and submit it to automate spam, registrations, reviews, and account deletion requests.
Weakness: CWE-804
Which versions are affected by CVE-2026-111278?
How do I fix CVE-2026-111278?
No fix has been published for CVE-2026-111278 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-111278 being exploited?
There is no known exploitation of CVE-2026-111278 in the wild and no public exploit code.
Sources
Also known as GHSA-vg5v-fhjm-x73p.