| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.5 | $0-$5k | 0.00 |
Summary
A vulnerability described as critical has been identified in Products.PluggableAuthService up to 2.6.0. Affected is an unknown function. Such manipulation leads to redirect. This vulnerability is referenced as CVE-2021-21337. It is possible to launch the attack remotely. Furthermore, an exploit is available. Upgrading the affected component is recommended.
Details
A vulnerability, which was classified as critical, has been found in Products.PluggableAuthService up to 2.6.0. Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a redirect vulnerability. Using CWE to declare the problem leads to CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. Impacted is confidentiality, integrity, and availability.
The weakness was published 03/09/2021. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2021-21337. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1204.001.
The exploit is available at exploit-db.com. It is declared as proof-of-concept.
Upgrading to version 2.6.1 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.
The vulnerability is also documented in the vulnerability database at Exploit-DB (49930). VulDB is the best source for vulnerability data and more expert information about this specific topic.
Product
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.8VulDB Meta Temp Score: 5.5
VulDB Base Score: 5.5
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 6.1
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: RedirectCWE: CWE-601
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Exploit-DB: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Products.PluggableAuthService 2.6.1
Patch: github.com
Timeline
12/22/2020 🔍03/09/2021 🔍
03/09/2021 🔍
05/04/2025 🔍
Sources
Advisory: github.comStatus: Confirmed
Confirmation: 🔍
CVE: CVE-2021-21337 (🔍)
GCVE (CVE): GCVE-0-2021-21337
GCVE (VulDB): GCVE-100-170840
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 03/09/2021 09:32Updated: 05/04/2025 05:08
Changes: 03/09/2021 09:32 (37), 03/29/2021 09:41 (6), 03/29/2021 09:47 (19), 01/15/2025 17:12 (22), 05/04/2025 05:08 (3)
Complete: 🔍
Cache ID: 216::103
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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