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CVE-2021-39362

20
FAUCET Score

CVE-2021-39362 describes a Cross-Site Scripting (XSS) vulnerability in ReCaptcha Solver 5.7. This flaw allows malicious responses from various captcha-solving services to be injected into the user's browser DOM, potentially granting the attacker full control over the user's session. Rated with a CVSS score of 6.1 (Medium), the vulnerability has a network attack vector and low attack complexity, requiring user interaction (UI:R) to be exploited. A successful exploit could lead to limited confidentiality and integrity impacts (C:L/I:L). There is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, indicating low public attention.

Impacted Technologies

VendorProductVersion(s)CPE
5.7CPE matchmatch criteria
cpe:2.3:a:recaptcha_solver_project:recaptcha_solver:5.7:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.58%
Probability of exploitation in next 30 days
EPSS Percentile
44.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0058 is in the 47th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

thesamarkand.tumblr.com / post/660171228514009088/xss-vulnerability-in-recaptcha-solver-by-dozz
Third Party Advisory