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CVE-2020-15514

20
FAUCET Score

CVE-2020-15514 describes a Cross-Site Scripting (XSS) vulnerability affecting the jh_captcha extension for TYPO3, specifically versions through 2.1.3 and 3.x through 3.0.2. This medium-severity vulnerability (CVSS 5.4) can be exploited with low attack complexity by a low-privileged attacker, requiring user interaction, and could lead to limited confidentiality and integrity impacts. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, indicating a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.1.3CPE matchmatch criteria
cpe:2.3:a:jh_captcha_project:jh_captcha:*:*:*:*:*:typo3:*:*
>= 3.0.0, <= 3.0.2CPE matchmatch criteria
cpe:2.3:a:jh_captcha_project:jh_captcha:*:*:*:*:*:typo3:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.56%
Probability of exploitation in next 30 days
EPSS Percentile
43.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0056 is in the 69th percentile among its peer group of 15,224 CVEs.

Social Chatter

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

Remediation

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: haffner/jh_captchaFixed in: 3.0.3
composerpatch availablevia ghsa
Product: haffner/jh_captchaFixed in: 2.1.4

Vendor Advisories (1)

composerGHSA-23fm-v895-3qxqmedium

jh_captcha for Typo3 XSS Vulnerability

May 24, 2022

References

typo3.org / help/security-advisories
Third Party Advisory
typo3.org / security/advisory/typo3-ext-sa-2020-012
Third Party Advisory