Firefly III cross-site request forgery

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability was found in Firefly III (unknown version). It has been rated as problematic. Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. Using CWE to declare the problem leads to CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. Impacted is integrity.

The weakness was shared 10/28/2021. The advisory is shared for download at This vulnerability is handled as CVE-2021-3900 since 10/23/2021. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Applying the patch c2c8c42ef3194d1aeba8c48240fe2e9063f77635 is able to eliminate this problem. The bugfix is ready for download at

The entries VDB-139525, VDB-164072, VDB-179617 and VDB-181328 are related to this item.




CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍


VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 5.0

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 4.3
CNA Vector ( 🔍



VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍


Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: c2c8c42ef3194d1aeba8c48240fe2e9063f77635


10/23/2021 🔍
10/28/2021 +5 days 🔍
10/28/2021 +0 days 🔍
11/01/2021 +4 days 🔍


Advisory: c2c8c42ef3194d1aeba8c48240fe2e9063f77635
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-3900 (🔍)
See also: 🔍


Created: 10/28/2021 01:54 PM
Updated: 11/01/2021 01:49 PM
Changes: 10/28/2021 01:54 PM (47), 11/01/2021 01:43 PM (3), 11/01/2021 01:49 PM (18)
Complete: 🔍
Cache ID: 44:F11:40


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