Flask-Caching Extension up to 1.10.1 on Flask Pickle cross site scripting ⚔ [Disputed]
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 8.3 | $0-$5k | 0.00 |
Summary
A vulnerability labeled as problematic has been found in Flask-Caching Extension up to 1.10.1 on Flask. The affected element is an unknown function of the component Pickle. The manipulation results in cross site scripting. This vulnerability was named CVE-2021-33026. The attack may be performed from remote. There is no available exploit. The presence of this vulnerability remains uncertain at this time. It is best practice to apply a patch to resolve this issue.
Details
A vulnerability was found in Flask-Caching Extension up to 1.10.1 on Flask. It has been classified as problematic. Affected is an unknown part of the component Pickle. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was presented 05/14/2021. The advisory is available at github.com. This vulnerability is traded as CVE-2021-33026. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.
The real existence of this vulnerability is still doubted at the moment.
Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.
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Product
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.4VulDB Meta Temp Score: 8.3
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CNA Base Score: 9.8
CNA Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Cross site scriptingCWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Patch: github.com
Timeline
05/13/2021 🔍05/14/2021 🔍
05/14/2021 🔍
05/03/2025 🔍
Sources
Advisory: github.comStatus: Confirmed
Disputed: 🔍
CVE: CVE-2021-33026 (🔍)
GCVE (CVE): GCVE-0-2021-33026
GCVE (VulDB): GCVE-100-175038
Entry
Created: 05/14/2021 06:52Updated: 05/03/2025 20:44
Changes: 05/14/2021 06:52 (38), 05/16/2021 09:45 (2), 07/19/2024 21:22 (36), 08/01/2024 17:28 (11), 05/03/2025 20:44 (8)
Complete: 🔍
Cache ID: 216::103
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