Tawk Live Chat PDF cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Tawk Live Chat. The impacted element is an unknown function of the component PDF Handler. The manipulation leads to cross site scripting. This vulnerability is traded as CVE-2025-8349. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Tawk Live Chat (the affected version is unknown). It has been rated as problematic. This issue affects an unknown code of the component PDF 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 summary by CVE is:

Cross-site Scripting (XSS) stored vulnerability in Tawk Live Chat. This vulnerability allows an attacker to execute JavaScript code in the victim's browser by uploading a malicious PDF with JavaScript payload through the chatbot. The PDF is stored by the application and subsequently displayed without proper sanitisation when other users access it. This vulnerability can be exploited to steal sensitive user data, such as session cookies, or to perform actions on behalf of the user.

The weakness was shared by José Manuel Jerónimo Rodríguez. It is possible to read the advisory at incibe.es. The identification of this vulnerability is CVE-2025-8349 since 07/30/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. 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.

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

The vulnerability is also documented in the vulnerability database at CNNVD (CNNVD-202510-2628). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/30/2025 CVE reserved
10/20/2025 +82 days Advisory disclosed
10/20/2025 +0 days VulDB entry created
10/22/2025 +2 days VulDB entry last update

Sourcesinfo

Advisory: incibe.es
Researcher: José Manuel Jerónimo Rodríguez
Status: Not defined

CVE: CVE-2025-8349 (🔒)
GCVE (CVE): GCVE-0-2025-8349
GCVE (VulDB): GCVE-100-329039
CNNVD: CNNVD-202510-2628 - Tawk Live Chat 跨站脚本漏洞

Entryinfo

Created: 10/20/2025 15:06
Updated: 10/22/2025 06:22
Changes: 10/20/2025 15:06 (66), 10/22/2025 06:22 (6)
Complete: 🔍
Cache ID: 216::103

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

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