How severe is CVE-2023-43791?

CVE-2023-43791 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-43791 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-43791?

CVE-2023-43791 affects Humansignal Label Studio. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-43791?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-43791 published?

CVE-2023-43791 was published on 2023-11-09 and last updated on 2026-06-17.

CVE-2023-43791

CVE-2023-43791 is a critical-severity vulnerability in Humansignal Label Studio with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Humansignal Label Studio
Published: 2023-11-09
Last modified: 2026-06-17

Description

Label Studio is a multi-type data labeling and annotation tool with standardized output format. There is a vulnerability that can be chained within the ORM Leak vulnerability to impersonate any account on Label Studio. An attacker could exploit these vulnerabilities to escalate their privileges from a low privilege user to a Django Super Administrator user. The vulnerability was found to affect versions before `1.8.2`, where a patch was introduced.

Frequently asked questions

What is CVE-2023-43791?: Label Studio is a multi-type data labeling and annotation tool with standardized output format. There is a vulnerability that can be chained within the ORM Leak vulnerability to impersonate any account on Label Studio. An attacker could exploit these vulnerabilities to escalate their privileges from a low privilege user to a Django Super Administrator user. The vulnerability was found to affect versions before `1.8.2`, where a patch was introduced.
How severe is CVE-2023-43791?: CVE-2023-43791 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-43791 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43791?: CVE-2023-43791 affects Humansignal Label Studio. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-43791?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-43791 published?: CVE-2023-43791 was published on 2023-11-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:humansignal:label_studio:*:*:*:*:*:*:*:*

More vulnerabilities in Humansignal Label Studio

CVE-2025-25297 — High (CVSS 8.6): Label Studio is an open source data labeling tool. Prior to version 1.16.0, Label Studio's S3 storage integration…
CVE-2023-47117 — High (CVSS 7.5): Label Studio is an open source data labeling tool. In all current versions of Label Studio prior to 1.9.2post0, the…
CVE-2023-47115 — High (CVSS 7.1): Label Studio is an a popular open source data labeling tool. Versions prior to 1.9.2 have a cross-site scripting (XSS)…
CVE-2025-47783 — Medium (CVSS 6.1): Label Studio is a multi-type data labeling and annotation tool. A vulnerability in versions prior to 1.18.0 allows an…
CVE-2025-25296 — Medium (CVSS 6.1): Label Studio is an open source data labeling tool. Prior to version 1.16.0, Label Studio's `/projects/upload-example`…
CVE-2026-22033 — Medium (CVSS 5.4): Label Studio is a multi-type data labeling and annotation tool. In 1.22.0 and earlier, a persistent stored cross-site…

All CVEs affecting Humansignal Label Studio →

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →