CVE-2026-6841Network attack vector

Browser script execution via unsanitized Page parameter

Published May 21, 2026 · Updated May 21, 2026

Reflected XSS in Best Practical Solutions Request Tracker 5.0.4 through 5.0.9 and 6.0.0 through 6.0.2 allows remote attackers to run JavaScript. Search responses insert the Page GET parameter into generated HTML without neutralizing script-capable input. A victim must open a crafted URL; the script then executes under the Request Tracker browser origin and can read or modify accessible page data.

CVSS severity5.1
Medium
EPSS probability0.24%
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 Best Practical Solutions Request Tracker 5.0.4 through 5.0.9 and 6.0.0 through 6.0.2 allows remote attackers to run JavaScript. Search responses insert the Page GET parameter into generated HTML without neutralizing script-capable input. A victim must open a crafted URL; the script then executes under the Request Tracker browser origin and can read or modify accessible page data.

The record

CVE
CVE-2026-6841
Published
May 21, 2026
Updated
May 21, 2026
Vendor
Best Practical Solutions
Product
Request Tracker
Classifications
CWE-79, CAPEC-591, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 21, 2026CVE publishedPublication date reported by the CVE source.
  2. May 21, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.0.4 <5.0.10
  2. Affected versionversion=6.0.0 <6.0.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Best Practical Solutions · Request Trackerversion=5.0.4 <5.0.10; version=6.0.0 <6.0.3

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.1CERT.PLCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-591Reflected XSS
T1204.001Malicious Link

Public exploit references

No public exploit references are available in this record.

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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