SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-20080

Insufficient output sanitization in ManageEngine ServiceDesk Plus before version 11200 and ManageEngine AssetExplorer before version 6800 allows a remote, unauthenticated attacker to conduct persistent cross-site scripting (XSS) attacks by uploading a…

MEDIUM 6.1EPSS 93.1%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 93.1%, higher than 100% of all known CVEs. Patch or mitigate before the next change window.

Description

Insufficient output sanitization in ManageEngine ServiceDesk Plus before version 11200 and ManageEngine AssetExplorer before version 6800 allows a remote, unauthenticated attacker to conduct persistent cross-site scripting (XSS) attacks by uploading a crafted XML asset file.

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
93.11% probability · 100th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Affected
zohocorp/manageengine servicedesk plus
Source
vulnreport@tenable.com
EPSS trend
0%48%95%3 November 2026: 93.11%3 November 20263 November 2026

EPSS 93.1% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. 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.