Vulnerability · Published Dec 13, 2021 · Assigned by WPScan
CVE-2021-24857ToTop Link <= 1.7.1 - Unauthenticated PHP Object Injection
Critical 9.8
In plain English
A critical-severity unsafe deserialization in ToTop Link from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 80% of all known vulnerabilities).
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)1.9%top 20.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
The ToTop Link WordPress plugin through 1.7.1 passes base64 encoded user input to the unserialize() PHP function, which could lead to PHP Object injection if a plugin installed on the blog has a suitable gadget chain.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | ToTop Link | 1.7.1 – through 1.7.1 |
Weakness: CWE-502