Captcha.eu Plugin up to 1.0.61 on WordPress server-side request forgery

Summaryinfo

A vulnerability classified as critical has been found in Captcha.eu Plugin up to 1.0.61 on WordPress. Impacted is an unknown function. Performing a manipulation results in server-side request forgery. This vulnerability was named CVE-2025-49374. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Captcha.eu Plugin up to 1.0.61 on WordPress. It has been classified as critical. This affects some unknown processing. The manipulation with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Server-Side Request Forgery (SSRF) vulnerability in captcha.eu Captcha.eu captcha-eu allows Server Side Request Forgery.This issue affects Captcha.eu: from n/a through <= 1.0.61.

The weakness was presented by Ch4r0n. The advisory is shared at vdp.patchstack.com. This vulnerability is uniquely identified as CVE-2025-49374 since 06/04/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/22/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• WordPress Plugin

Name

• Captcha.eu Plugin

Version

• 1.0.0
• 1.0.1
• 1.0.2
• 1.0.3
• 1.0.4
• 1.0.5
• 1.0.6
• 1.0.7
• 1.0.8
• 1.0.9
• 1.0.10
• 1.0.11
• 1.0.12
• 1.0.13
• 1.0.14
• 1.0.15
• 1.0.16
• 1.0.17
• 1.0.18
• 1.0.19
• 1.0.20
• 1.0.21
• 1.0.22
• 1.0.23
• 1.0.24
• 1.0.25
• 1.0.26
• 1.0.27
• 1.0.28
• 1.0.29
• 1.0.30
• 1.0.31
• 1.0.32
• 1.0.33
• 1.0.34
• 1.0.35
• 1.0.36
• 1.0.37
• 1.0.38
• 1.0.39
• 1.0.40
• 1.0.41
• 1.0.42
• 1.0.43
• 1.0.44
• 1.0.45
• 1.0.46
• 1.0.47
• 1.0.48
• 1.0.49
• 1.0.50
• 1.0.51
• 1.0.52
• 1.0.53
• 1.0.54
• 1.0.55
• 1.0.56
• 1.0.57
• 1.0.58
• 1.0.59
• 1.0.60
• 1.0.61

CPE 2.3info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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