How severe is CVE-2021-41919?

CVE-2021-41919 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-41919 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-41919?

CVE-2021-41919 affects Webtareas Project Webtareas. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-41919?

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

When was CVE-2021-41919 published?

CVE-2021-41919 was published on 2021-10-08 and last updated on 2026-06-17.

CVE-2021-41919

CVE-2021-41919 is a high-severity vulnerability in Webtareas Project Webtareas with a CVSS 3.x base score of 8.8. 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-434.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Webtareas Project Webtareas
Published: 2021-10-08
Last modified: 2026-06-17

Description

webTareas version 2.4 and earlier allows an authenticated user to arbitrarily upload potentially dangerous files without restrictions. This is working by adding or replacing a personal profile picture. The affected endpoint is /includes/upload.php on the HTTP POST data. This allows an attacker to exploit the platform by injecting code or malware and, under certain conditions, to execute code on remote user browsers.

Frequently asked questions

What is CVE-2021-41919?: webTareas version 2.4 and earlier allows an authenticated user to arbitrarily upload potentially dangerous files without restrictions. This is working by adding or replacing a personal profile picture. The affected endpoint is /includes/upload.php on the HTTP POST data. This allows an attacker to exploit the platform by injecting code or malware and, under certain conditions, to execute code on remote user browsers.
How severe is CVE-2021-41919?: CVE-2021-41919 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-41919 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-41919?: CVE-2021-41919 affects Webtareas Project Webtareas. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-41919?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-41919 published?: CVE-2021-41919 was published on 2021-10-08 and last updated on 2026-06-17.

References

https://n4nj0.github.io/advisories/webtareas-multiple-vulnerabilities-i/

Affected products (1)

cpe:2.3:a:webtareas_project:webtareas:*:*:*:*:*:*:*:*

More vulnerabilities in Webtareas Project Webtareas

CVE-2022-44291 — Critical (CVSS 9.8): webTareas 2.4p5 was discovered to contain a SQL injection vulnerability via the id parameter in phasesets.php.
CVE-2022-44290 — Critical (CVSS 9.8): webTareas 2.4p5 was discovered to contain a SQL injection vulnerability via the id parameter in…
CVE-2021-43481 — Critical (CVSS 9.8): An SQL Injection vulnerability exists in Webtareas 2.4p3 and earlier via the $uq HTTP POST parameter in…
CVE-2023-53971 — High (CVSS 8.8): WebTareas 2.4 contains a file upload vulnerability that allows authenticated users to upload malicious PHP files…
CVE-2021-41916 — High (CVSS 8.8): A Cross-Site Request Forgery (CSRF) vulnerability in webTareas version 2.4 and earlier allows a remote attacker to…
CVE-2023-53972 — High (CVSS 7.5): WebTareas 2.4 contains a SQL injection vulnerability in the webTareasSID cookie parameter that allows unauthenticated…

All CVEs affecting Webtareas Project Webtareas →

Other CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities

CVE-2026-48283 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-48276 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Unrestricted Upload of File with Dangerous Type…
CVE-2026-57700 — Critical (CVSS 10.0): Unrestricted Upload of File with Dangerous Type vulnerability in Daan.Dev OMGF Pro allows Using Malicious Files. This…
CVE-2025-69129 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in WordPress & WooCommerce Scraper Plugin, Import Data from Any Site <= 1.0.7…
CVE-2026-40772 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Upload in GeekyBot <= 1.2.2 versions.
CVE-2026-40412 — Critical (CVSS 10.0): Unrestricted upload of file with dangerous type in Azure Orbital Spatio allows an unauthorized attacker to execute code…

Browse all CWE-434 (Unrestricted Upload of File with Dangerous Type) vulnerabilities →