How severe is CVE-2023-26261?

CVE-2023-26261 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-26261 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26261?

CVE-2023-26261 primarily affects Ubikasec Waap Cloud. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-26261?

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

When was CVE-2023-26261 published?

CVE-2023-26261 was published on 2023-03-08 and last updated on 2026-06-17.

CVE-2023-26261

CVE-2023-26261 is a critical-severity vulnerability in Ubikasec Waap Cloud with a CVSS 3.x base score of 9.8. 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-74.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Ubikasec Waap Cloud
Published: 2023-03-08
Last modified: 2026-06-17

Description

In UBIKA WAAP Gateway/Cloud through 6.10, a blind XPath injection leads to an authentication bypass by stealing the session of another connected user. The fixed versions are WAAP Gateway & Cloud 6.11.0 and 6.5.6-patch15.

Frequently asked questions

What is CVE-2023-26261?: In UBIKA WAAP Gateway/Cloud through 6.10, a blind XPath injection leads to an authentication bypass by stealing the session of another connected user. The fixed versions are WAAP Gateway & Cloud 6.11.0 and 6.5.6-patch15.
How severe is CVE-2023-26261?: CVE-2023-26261 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-26261 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26261?: CVE-2023-26261 primarily affects Ubikasec Waap Cloud. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-26261?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-26261 published?: CVE-2023-26261 was published on 2023-03-08 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:ubikasec:waap_cloud:*:*:*:*:*:*:*:*
cpe:2.3:a:ubikasec:waap_gateway:*:*:*:*:*:*:*:*
cpe:2.3:a:ubikasec:waap_cloud:6.5.6:-:*:*:*:*:*:*
cpe:2.3:a:ubikasec:waap_gateway:6.5.6:-:*:*:*:*:*:*

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