CVE-2026-85116: Simple CAPTCHA with Cloudflare Turnstile 1.2.2 - 1.42.1 - Unauthenticated Arbitrary Shortcode Execution via Contact Form 7 Field Repopulation
Vulnerability summary
CVE-2026-85116 is a medium (CVSS 6.5) Injection vulnerability in unknown simple captcha with cloudflare turnstile. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.1% of scored vulnerabilities. 1 public exploit is recorded. Fixed in 1.42.3.
Timeline
- 11-09-2026PublishedVulnerability first disclosed.
- 11-09-2026Last modifiedVulnerability information updated.
Description
The Simple CAPTCHA with Cloudflare Turnstile WordPress plugin from 1.2.2 before 1.42.3 runs the shortcode parser over the whole rendered Contact Form 7 form, including the values a visitor submitted, allowing unauthenticated users to execute arbitrary shortcodes registered on the site.
CVSS metrics
3 scores · 3 sources · 1 version- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- wordfenceSource6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS trend
Probability
0.31%
Chance of exploitation in the next 30 days
Percentile
22%
Versus all other CVEs
30-day change
Increase +0.12 pp
From 0.18% on 22-09-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (wpscan.com)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
- CWE-94Improper Control of Generation of Code ('Code Injection')The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
Affected systems
Unknown1 product
- simple captcha with cloudflare turnstile≥ 1.2.2, < 1.42.3
Wordpress1 product
- simple-cloudflare-turnstile≤ 1.42.1 (fixed in 1.42.3)
2 vendors · 2 products