CVE-2020-6843Public exploitNetwork attack vector

Administrator-session script execution via unfiltered key parameter

Published Jan 23, 2020 · Updated Aug 4, 2024

Reflected XSS in Zoho ManageEngine ServiceDesk Plus 11.0 Build 11007 allows remote authenticated users to run script in an administrator's browser. The CustomReportHandler.do geti18nkey module reflects a modified key parameter into its response without filtering, so injected HTML executes as script. Exploitation requires an administrator session and a crafted link to be opened; the script receives that session's web-origin access.

CVSS severity4.8
Medium
EPSS probability2.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Zoho ManageEngine ServiceDesk Plus 11.0 Build 11007 allows remote authenticated users to run script in an administrator's browser. The CustomReportHandler.do geti18nkey module reflects a modified key parameter into its response without filtering, so injected HTML executes as script. Exploitation requires an administrator session and a crafted link to be opened; the script receives that session's web-origin access.

The record

CVE
CVE-2020-6843
Published
Jan 23, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1203
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 23, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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