🛡️ CVE-2023-22288 — checkmk

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. A user must be tricked into taking some action. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality low, integrity none, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: Low — the attack works reliably, with no preparation.
• Privileges required: Low — an ordinary user account is enough.
• User interaction: Required — someone has to click, open or visit something.
• Scope: Changed — a successful attack reaches components beyond the vulnerable one.
• Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
• Integrity impact: None.
• Availability impact: None.

Weakness class

CVE-2023-22288 is classified as CWE-138: Improper Neutralization of Special Elements. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as control elements or syntactic markers when they are sent to a downstream component.

Affected software

CVE-2023-22288 is recorded against 1 package.

• checkmk (from 1.6.0 up to 2.0.0)

Timeline and source

Published on 20 March 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

checkmk.com
checkmk.com

Other advisories for this package

checkmk has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2026-9549 (4.8 Medium, published 8 Jun 2026)
• CVE-2026-8833 (5.4 Medium, published 8 Jun 2026)
• CVE-2026-8078 (4.8 Medium, published 8 Jun 2026)
• CVE-2026-7765 (5.3 Medium, published 8 Jun 2026)
• CVE-2026-7186 (5.4 Medium, published 8 Jun 2026)
• CVE-2024-47091 (7.8 High, published 13 May 2026)
• CVE-2026-33457 (6.3 Medium, published 10 Apr 2026)
• CVE-2026-33456 (7.6 High, published 10 Apr 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-138: Improper Neutralization of Special Elements) in other software:

• CVE-2026-26129 (7.5 High, published 7 May 2026)
• CVE-2026-32178 (7.5 High, published 14 Apr 2026)
• CVE-2026-20009 (5.3 Medium, published 4 Mar 2026)
• CVE-2025-48939 (4.2 Medium, published 3 Jul 2025)
• CVE-2024-51500 (5.3 Medium, published 4 Nov 2024)
• CVE-2024-38133 (7.8 High, published 13 Aug 2024)
• CVE-2023-42117 (9.8 Critical, published 3 May 2024)
• CVE-2022-2429 (6.5 Medium, published 6 Sep 2022)

CVE-2023-22288 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Affected Packages

References