MyEMS up to 6.4.0 Admin Backend myems-api/core/svg.py on_post new_values['data'] cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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2.2$0-$5k1.12

Summaryinfo

A vulnerability was found in MyEMS up to 6.4.0. It has been classified as problematic. The impacted element is the function on_post of the file myems-api/core/svg.py of the component Admin Backend. This manipulation of the argument new_values['data'] causes cross site scripting. This vulnerability appears as CVE-2026-15321. The attack may be initiated remotely. In addition, an exploit is available. Upgrading the affected component is recommended. The issue report remains open even though there is an official fix for it.

Detailsinfo

A vulnerability classified as problematic was found in MyEMS up to 6.4.0. Affected by this vulnerability is the function on_post of the file myems-api/core/svg.py of the component Admin Backend. The manipulation of the argument new_values['data'] 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.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-15321. The exploitation appears to be easy. The attack can be launched remotely. Additional levels of successful authentication are necessary for exploitation. It demands that the victim is doing some kind of user interaction. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The issue report remains open even though there is an official fix for it.

Upgrading to version 6.5.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 4a97edfbd786c779d0322054833b21ddf54d5b06 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.4
VulDB Meta Temp Score: 2.2

VulDB Base Score: 2.4
VulDB Temp Score: 2.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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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: 🔒
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: MyEMS 6.5.0
Patch: 4a97edfbd786c779d0322054833b21ddf54d5b06

Timelineinfo

07/09/2026 Advisory disclosed
07/09/2026 +0 days VulDB entry created
07/09/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 412
Status: Confirmed

CVE: CVE-2026-15321 (🔒)
GCVE (CVE): GCVE-0-2026-15321
GCVE (VulDB): GCVE-100-377263
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/09/2026 20:17
Changes: 07/09/2026 20:17 (63)
Complete: 🔍
Submitter: rekczh
Cache ID: 216::103

Submitinfo

Accepted

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