SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-29104

A stored Cross Site Scripting (XXS) vulnerability in ArcGIS Server Manager version 10.8.1 and below may allow a remote unauthenticated attacker to pass and store malicious strings in the ArcGIS Server Manager application.

MEDIUM 6.1EPSS 0.81%

Does this matter?

Lower severity and a low EPSS score (0.81%). Track it; it rarely justifies an emergency change on its own.

Description

A stored Cross Site Scripting (XXS) vulnerability in ArcGIS Server Manager version 10.8.1 and below may allow a remote unauthenticated attacker to pass and store malicious strings in the ArcGIS Server Manager application.

CVSS 3.1
6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
0.81% probability · 57th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Affected
esri/arcgis server
Source
psirt@esri.com
EPSS trend
0%3%5%26 October 2026: 0.81%26 October 202626 October 2026

EPSS 0.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.