EspoCRM up to 6.1.6 Avatar Image cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in EspoCRM up to 6.1.6. This issue affects some unknown processing of the component Avatar Image Handler. This manipulation causes cross site scripting. This vulnerability is handled as CVE-2021-3539. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in EspoCRM up to 6.1.6. It has been declared as problematic. Affected by this vulnerability is some unknown processing of the component Avatar Image Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity.

The weakness was released 08/05/2021. It is possible to read the advisory at rapid7.com. This vulnerability is known as CVE-2021-3539. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 237294 (Debian dla-4180 : pgbouncer - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.7 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (237294). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
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: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 237294
Nessus Name: Debian dla-4180 : pgbouncer - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: EspoCRM 6.1.7

Timelineinfo

05/06/2021 🔍
08/05/2021 +91 days 🔍
08/05/2021 +0 days 🔍
05/27/2025 +1391 days 🔍

Sourcesinfo

Advisory: rapid7.com
Status: Confirmed

CVE: CVE-2021-3539 (🔍)
GCVE (CVE): GCVE-0-2021-3539
GCVE (VulDB): GCVE-100-180151

Entryinfo

Created: 08/05/2021 08:40
Updated: 05/27/2025 23:58
Changes: 08/05/2021 08:40 (37), 08/08/2021 18:54 (2), 08/08/2021 19:03 (1), 05/27/2025 23:58 (16)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

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