Sangoma Switchvox 8.3 Template template_text cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k2.98+

Summaryinfo

A vulnerability labeled as problematic has been found in Sangoma Switchvox 8.3. This impacts an unknown function of the component Template. The manipulation of the argument template_text results in cross site scripting. This vulnerability is reported as CVE-2026-9588. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as problematic has been found in Sangoma Switchvox 8.3. Affected is an unknown part of the component Template. The manipulation of the argument template_text 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 integrity. CVE summarizes:

A stored cross-site scripting (XSS) vulnerability exists in Sangoma Switchvox SMB Edition 8.3 (104997) within the voicemail notification template functionality. The submit_modify_voicemail_template endpoint fails to properly sanitize HTML content supplied by authenticated users, allowing malicious JavaScript supplied through the template_text parameter to be stored server-side and subsequently rendered to other users.

The advisory is shared for download at sangomakb.atlassian.net. This vulnerability is traded as CVE-2026-9588 since 05/26/2026. The exploitability is told to be easy. It is possible to launch the attack 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.

Upgrading to version 8.4.0.2 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

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
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: 🔒

Upgrade: Switchvox 8.4.0.2

Timelineinfo

05/26/2026 CVE reserved
07/17/2026 +52 days Advisory disclosed
07/17/2026 +0 days VulDB entry created
07/17/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: sangomakb.atlassian.net
Status: Confirmed

CVE: CVE-2026-9588 (🔒)
GCVE (CVE): GCVE-0-2026-9588
GCVE (VulDB): GCVE-100-379872

Entryinfo

Created: 07/17/2026 18:56
Changes: 07/17/2026 18:56 (54)
Complete: 🔍
Cache ID: 216::103

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