CVE-2020-26801Public exploitNetwork attack vector

User-information disclosure via stored script injection

Published Jun 25, 2021 · Updated Jul 9, 2026

Stored XSS in the web interface of Tripp Lite SU2200RTXL2UA firmware 12.04.0055 allows remote authenticated users to read user information. The /Forms/device_vars_1 handler stores crafted POST values and later renders them as executable JavaScript without adequate neutralization. The CVE record requires authentication and victim interaction, while the public proof of concept reports that injection itself can be unauthenticated.

CVSS severity5.4
Medium
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in the web interface of Tripp Lite SU2200RTXL2UA firmware 12.04.0055 allows remote authenticated users to read user information. The /Forms/device_vars_1 handler stores crafted POST values and later renders them as executable JavaScript without adequate neutralization. The CVE record requires authentication and victim interaction, while the public proof of concept reports that injection itself can be unauthenticated.

The record

CVE
CVE-2020-26801
Published
Jun 25, 2021
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 25, 2021CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record 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 privilegesauthenticated

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
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

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

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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