CVE-2023-50339Network attack vector

Browser script execution via stored admin-page input

Published Dec 26, 2023 · Updated Sep 9, 2024

Stored XSS in GROWI before 6.1.11 allows remote authenticated users to execute arbitrary script in a visitor's browser via /admin/users. Published advisories identify that page as the storage and rendering locus but do not disclose the responsible field or failed neutralization step. A low-privileged account and a victim who later loads the stored value are required; execution remains in the victim's browser context.

CVSS severity5.4
Medium
EPSS probability0.30%
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 GROWI before 6.1.11 allows remote authenticated users to execute arbitrary script in a visitor's browser via /admin/users. Published advisories identify that page as the storage and rendering locus but do not disclose the responsible field or failed neutralization step. A low-privileged account and a victim who later loads the stored value are required; execution remains in the victim's browser context.

The record

CVE
CVE-2023-50339
Published
Dec 26, 2023
Updated
Sep 9, 2024
Vendor
WESEEK, Inc.
Product
GROWI
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 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?

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

  1. Affected versionversion=v6.1.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WESEEK, Inc. · GROWIversion=v6.1.11

Published CVSS scores

5.4JPCERT/CC and IPA JVNCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.5JPCERT/CC and IPA JVNAV:N/AC:M/Au:S/C:N/I:P/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

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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