TrueConf Server 5.5.2.10813 Conference Info Page Description cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability was found in TrueConf Server 5.5.2.10813 and classified as problematic. This issue affects some unknown processing of the component Conference Info Page. Executing a manipulation of the argument Description can lead to cross site scripting. This vulnerability is tracked as CVE-2025-66823. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as problematic was found in TrueConf Server 5.5.2.10813. This vulnerability affects an unknown code of the component Conference Info Page. The manipulation of the argument description with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. As an impact it is known to affect integrity. CVE summarizes:

An HTML Injection vulnerability in TrueConf server 5.5.2.10813 in the conference description field allows an attacker to inject arbitrary HTML in the Create/Edit conference functionality. The payload will be triggered when the victim opens the Conference Info page ([conference url]/info).

This vulnerability was named CVE-2025-66823 since 12/08/2025. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

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

NVD Base Score: 5.4
NVD Vector: 🔒

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-80 / CWE-74 / CWE-707
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

12/08/2025 CVE reserved
12/31/2025 +23 days Advisory disclosed
12/31/2025 +0 days VulDB entry created
01/07/2026 +7 days VulDB entry last update

Sourcesinfo

Status: Not defined

CVE: CVE-2025-66823 (🔒)
GCVE (CVE): GCVE-0-2025-66823
GCVE (VulDB): GCVE-100-339112

Entryinfo

Created: 12/31/2025 03:59
Updated: 01/07/2026 19:33
Changes: 12/31/2025 03:59 (53), 01/07/2026 19:33 (11)
Complete: 🔍
Cache ID: 216::103

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