How severe is CVE-2023-34923?

CVE-2023-34923 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-34923 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34923?

CVE-2023-34923 affects Topdesk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-34923?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-34923 published?

CVE-2023-34923 was published on 2023-06-22 and last updated on 2026-06-17.

CVE-2023-34923

CVE-2023-34923 is a high-severity vulnerability in Topdesk with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Topdesk
Published: 2023-06-22
Last modified: 2026-06-17

Description

XML Signature Wrapping (XSW) in SAML-based Single Sign-on feature in TOPdesk v12.10.12 allows bad actors with credentials to authenticate with the Identity Provider (IP) to impersonate any TOPdesk user via SAML Response manipulation.

Frequently asked questions

What is CVE-2023-34923?: XML Signature Wrapping (XSW) in SAML-based Single Sign-on feature in TOPdesk v12.10.12 allows bad actors with credentials to authenticate with the Identity Provider (IP) to impersonate any TOPdesk user via SAML Response manipulation.
How severe is CVE-2023-34923?: CVE-2023-34923 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-34923 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34923?: CVE-2023-34923 affects Topdesk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-34923?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-34923 published?: CVE-2023-34923 was published on 2023-06-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:topdesk:topdesk:12.10.12:*:*:*:*:*:*:*

More vulnerabilities in Topdesk

CVE-2018-10232 — Medium (CVSS 6.5): Cross-site request forgery (CSRF) vulnerability in TOPdesk before 8.05.017 (June 2018 version) and before 5.7.SR9…
CVE-2018-10231 — Medium (CVSS 6.1): Cross-site scripting (XSS) vulnerability in TOPdesk before 8.05.017 (June 2018 version) and before 5.7.SR9 allows…
CVE-2017-7276 — Medium (CVSS 6.1): There is reflected XSS in TOPdesk before 5.7.6 and 6.x and 7.x before 7.03.019.

All CVEs affecting Topdesk →

Other CWE-863 (Incorrect Authorization) vulnerabilities

CVE-2026-48286 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9396 and earlier are affected by an Incorrect Authorization…
CVE-2026-48303 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by an Incorrect Authorization…
CVE-2026-44330 — Critical (CVSS 10.0): free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the…
CVE-2026-46595 — Critical (CVSS 10.0): Previously, CVE-2024-45337 fixed an authorization bypass for misused ssh server configurations; if any other type of…
CVE-2026-33105 — Critical (CVSS 10.0): Improper authorization in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over…
CVE-2026-32213 — Critical (CVSS 10.0): Improper authorization in Azure AI Foundry allows an unauthorized attacker to elevate privileges over a network.

Browse all CWE-863 (Incorrect Authorization) vulnerabilities →