How severe is CVE-2023-26255?

CVE-2023-26255 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-26255 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 48% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26255?

CVE-2023-26255 affects Stagil Stagil Navigation. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-26255?

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-2023-26255 published?

CVE-2023-26255 was published on 2023-02-28 and last updated on 2026-06-17.

CVE-2023-26255

CVE-2023-26255 is a high-severity vulnerability in Stagil Stagil Navigation with a CVSS 3.x base score of 7.5. Its EPSS exploit-prediction score of 48% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 48% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Stagil Stagil Navigation
Published: 2023-02-28
Last modified: 2026-06-17

Description

An unauthenticated path traversal vulnerability affects the "STAGIL Navigation for Jira - Menu & Themes" plugin before 2.0.52 for Jira. By modifying the fileName parameter to the snjCustomDesignConfig endpoint, it is possible to traverse and read the file system.

Frequently asked questions

What is CVE-2023-26255?: An unauthenticated path traversal vulnerability affects the "STAGIL Navigation for Jira - Menu & Themes" plugin before 2.0.52 for Jira. By modifying the fileName parameter to the snjCustomDesignConfig endpoint, it is possible to traverse and read the file system.
How severe is CVE-2023-26255?: CVE-2023-26255 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-26255 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 48% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26255?: CVE-2023-26255 affects Stagil Stagil Navigation. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-26255?: 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-2023-26255 published?: CVE-2023-26255 was published on 2023-02-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:stagil:stagil_navigation:*:*:*:*:*:jira:*:*

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