CVE-2026-16602: Passster (WordPress plugin) · Information Exposure
Affects Passster (WordPress plugin)Source CVE Database V5
Not known to be exploited · CVSS 7.5 High : upgrade to 4.3.6 soon.
Data as of 3 Nov 2026, 22:58 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 37% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 4.3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 5 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.
What to do
Upgrade Passster (WordPress plugin) to 4.3.6.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Passster | Affected
| Fixed in
|
AI-suggested
If you cannot patch yet, site administrators should consider disabling the vulnerable REST endpoint or removing the captcha provider configuration if feasible to reduce exposure.
Description
CVE-2026-16602 is a high-severity information exposure vulnerability in the Passster WordPress plugin before version 4.3.6. The plugin fails to verify post status before returning post content via an unauthenticated REST endpoint. This allows unauthenticated users to access content of non-public posts (draft, private, pending) on sites with a configured captcha provider.