How severe is CVE-2023-41100?

CVE-2023-41100 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2023-41100 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-41100?

CVE-2023-41100 affects Hcaptcha For Ext Form Project. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-41100?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-41100 published?

CVE-2023-41100 was published on 2023-08-23 and last updated on 2026-06-17.

CVE-2023-41100

CVE-2023-41100 is a medium-severity vulnerability in Hcaptcha For Ext Form Project with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Hcaptcha For Ext Form Project
Published: 2023-08-23
Last modified: 2026-06-17

Description

An issue was discovered in the hcaptcha (aka hCaptcha for EXT:form) extension before 2.1.2 for TYPO3. It fails to check that the required captcha field is submitted in the form data. allowing a remote user to bypass the CAPTCHA check.

Frequently asked questions

What is CVE-2023-41100?: An issue was discovered in the hcaptcha (aka hCaptcha for EXT:form) extension before 2.1.2 for TYPO3. It fails to check that the required captcha field is submitted in the form data. allowing a remote user to bypass the CAPTCHA check.
How severe is CVE-2023-41100?: CVE-2023-41100 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2023-41100 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-41100?: CVE-2023-41100 affects Hcaptcha For Ext Form Project. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-41100?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-41100 published?: CVE-2023-41100 was published on 2023-08-23 and last updated on 2026-06-17.

References

https://typo3.org/security/advisory/typo3-ext-sa-2023-007

Affected products (1)

cpe:2.3:a:hcaptcha_for_ext\:form_project:hcaptcha_for_ext\:form:*:*:*:*:*:typo3:*:*