CVE-2021-30119CWE-79cross-site-scripting

CVE-2021-30119

Medium · published July 9, 2021

Patch now

High probability of exploitation

CVSS calls it medium at 5.4. It sits in the 99.1th percentile for exploit probability.

CVSS v3.1
5.4
EPSS
59%
Percentile
99.1
In the wild
Unconfirmed
What it is

Authenticated reflective XSS in HelpDeskTab/rcResults.asp The parameter result of /HelpDeskTab/rcResults.asp is insecurely returned in the requested web page and can be used to perform a Cross Site Scripting attack Example request: `https://x.x.x.x/HelpDeskTab/rcResults.asp?result=<script>alert(document.cookie)</script>` The same is true for the parameter FileName of /done.asp Eaxmple request: `https://x.x.x.x/done.asp?FileName=";</script><script>alert(1);a="&PathData=&originalName=shell.aspx&FileSize=4388&TimeElapsed=00:00:00.078`

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.58759 · 99.1th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2021-07-09T18:15Z
Affected products (1)
ProductVersionsFixed in
kaseya/vsa< 9.5.79.5.7
References (6)
https://csirt.divd.nl/DIVD-2021-00011 · [email protected]https://csirt.divd.nl/2021/07/07/Kaseya-Limited-Disclosure/ · [email protected]https://csirt.divd.nl/CVE-2021-30119 · [email protected]https://csirt.divd.nl/2021/07/07/Kaseya-Limited-Disclosure/ · af854a3a-2127-422b-91ae-364da2661108https://csirt.divd.nl/CVE-2021-30119 · af854a3a-2127-422b-91ae-364da2661108https://csirt.divd.nl/DIVD-2021-00011 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 09 JUL 13:20Z
    Authenticated Authenticated reflective XSS in Kaseya VSA <= v9.5.6
    cvelistv5