CVE-2023-38489Network attack vector

Account persistence via sessions surviving password changes

Published Jul 27, 2023 · Updated Oct 23, 2024

Insufficient session expiration in Content Folder Kirby 3.x allows remote authenticated users to retain account access after a password change. The Auth::currentUserFromSession path trusted the session user ID without comparing the login time with the .htpasswd modification time, so password changes left other sessions valid. Sites need user accounts and an enabled API or Panel, and exploitation requires a session obtained through a shared browser or an earlier password login.

CVSS severity7.3
High
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient session expiration in Content Folder Kirby 3.x allows remote authenticated users to retain account access after a password change. The Auth::currentUserFromSession path trusted the session user ID without comparing the login time with the .htpasswd modification time, so password changes left other sessions valid. Sites need user accounts and an enabled API or Panel, and exploitation requires a session obtained through a shared browser or an earlier password login.

The record

CVE
CVE-2023-38489
Published
Jul 27, 2023
Updated
Oct 23, 2024
Vendor
Content Folder
Product
Kirby
Classifications
CWE-613, T1078
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 23, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <3.5.8.3
  2. Affected versionversion=< 3.5.8.3
  3. Affected versionversion=>= 3.6.0, < 3.6.6.3
  4. Affected versionversion=3.60 <3.6.6.3
  5. Affected versionversion=>= 3.7.0, < 3.7.5.2
  6. Affected versionversion=3.70 <3.7.5.2
  7. Affected versionversion=>= 3.8.0, < 3.8.41
  8. Affected versionversion=3.8.0 <3.8.41
  9. Affected versionversion=>= 3.9.0, < 3.9.6
  10. Affected versionversion=3.9.0 <3.9.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Content Folder · Kirbyversion=0 <3.5.8.3; version=< 3.5.8.3; version=>= 3.6.0, < 3.6.6.3; version=3.60 <3.6.6.3; version=>= 3.7.0, < 3.7.5.2; version=3.70 <3.7.5.2; version=>= 3.8.0, < 3.8.41; version=3.8.0 <3.8.41; version=>= 3.9.0, < 3.9.6; version=3.9.0 <3.9.6

Published CVSS scores

7.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/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-613Insufficient Session Expiration
T1078Valid Accounts

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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