Plone CMS up to 5.2.2 File Upload cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.2$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Plone CMS up to 5.2.2. The impacted element is an unknown function of the component File Upload Handler. The manipulation leads to cross site scripting. This vulnerability is uniquely identified as CVE-2021-3313. The attack is possible to be carried out remotely. Moreover, an exploit is present. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Plone CMS up to 5.2.2 (Content Management System). This issue affects some unknown functionality of the component File Upload Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity.

The weakness was disclosed 05/21/2021 as CSNC-2021-013. The advisory is shared at compass-security.com. The identification of this vulnerability is CVE-2021-3313. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The exploit is available at compass-security.com. It is declared as proof-of-concept.

Upgrading to version 5.2.5 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at plone.org. The best possible mitigation is suggested to be upgrading to the latest version.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.5
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: CMS 5.2.5
Patch: plone.org

Timelineinfo

01/26/2021 🔍
05/21/2021 +114 days 🔍
05/21/2021 +0 days 🔍
05/23/2021 +2 days 🔍

Sourcesinfo

Advisory: CSNC-2021-013
Status: Confirmed

CVE: CVE-2021-3313 (🔍)
GCVE (CVE): GCVE-0-2021-3313
GCVE (VulDB): GCVE-100-175457
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 05/21/2021 08:07
Updated: 05/23/2021 12:12
Changes: 05/21/2021 08:07 (44), 05/23/2021 12:12 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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