CVE-2023-49276

mediumpriority · track · 24EPSS 0.005 · 42 %ileEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.50% (42nd) EPSS
CVSS 6.1 · medium
Is it mine?
3 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

Uptime Kuma is an open source self-hosted monitoring tool. In affected versions the Google Analytics element in vulnerable to Attribute Injection leading to Cross-Site-Scripting (XSS). Since the custom status interface can set an independent Google Analytics ID and the template has not been sanitized, there is an attribute injection vulnerability here, which can lead to XSS attacks. This vulnerability has been addressed in commit `f28dccf4e` which is included in release version 1.23.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

01

cvss

Technical severity, 0–10. One row per scoring source.

6.3
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7
v3.16.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:Nsecondary · ENISA EU
v3.16.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:Nsecondary · security-advisories@github.comexploitability 2.1 · impact 4.2
v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondary · OSV
v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)
02

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USCWE-79US
03

affected products (3)

Products and version ranges known to be affected.

04

advisories (1)

Vendor and ecosystem advisories describing this.

  • GHSA-v4v2-8h88-65qjAttribute Injection leading to XSS(Cross-Site-Scripting)2023-11-24ghsa · osvUS

    ### Summary Google Analytics element Attribute Injection leading to XSS ### Details Since the custom status interface can set an independent Google Analytics ID and the template has not been sanitized, there is an attribute injection vulnerability here, which can lead to XSS attacks. ![image](https://user-images.githubusercontent.com/110759348/282278047-667b774b-421f-449a-8f95-3f3906ae4216.png) ### PoC 1. Run the latest version of the louislam/uptime-kuma container and initialize the account password. 2. Create a new status page. 3. Edit the status page and change the Google Analytics ID to following payload(it only works for firefox. Any attribute can be injected, but this seems the most intuitive): ``` 123123" onafterscriptexecute=alert(window.name+1),eval(window.name) a="x ``` 4. Click Save and return to the interface. XSS occurs. screenshots: ![image](https://user-images.githubusercontent.com/110759348/282287393-4874974f-9416-4941-9c2e-a92ee2412197.png) ![9d0603e634fb7da2e83a0a45dc0a36ac](https://user-images.githubusercontent.com/110759348/282287346-1deb0382-520f-47cf-b191-9b7d19c47879.png)

05

also known as (3)

Other names and identifiers for this entity.

06

sources

Which sources assert this record, and when.

cnnvdenisa_euvdnvdosvNVDCVE.orgMITRE
published 2023-12-01modified 2026-06-17
07

references (6)

External citations — patches, advisories, analysis.

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