How severe is CVE-2023-0376?

CVE-2023-0376 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-0376 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-0376?

CVE-2023-0376 affects Themeum Qubely. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-0376?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-0376 have an EU (EUVD) identifier?

Yes. CVE-2023-0376 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-12437.

When was CVE-2023-0376 published?

CVE-2023-0376 was published on 2024-01-16 and last updated on 2026-06-17.

CVE-2023-0376

CVE-2023-0376 is a medium-severity vulnerability in Themeum Qubely with a CVSS 3.x base score of 5.4. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-12437
Weakness: CWE-79
Affected product: Themeum Qubely
Published: 2024-01-16
Last modified: 2026-06-17

Description

The Qubely WordPress plugin before 1.8.5 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

Frequently asked questions

What is CVE-2023-0376?: The Qubely WordPress plugin before 1.8.5 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.
How severe is CVE-2023-0376?: CVE-2023-0376 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-0376 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-0376?: CVE-2023-0376 affects Themeum Qubely. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-0376?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-0376 have an EU (EUVD) identifier?: Yes. CVE-2023-0376 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-12437.
When was CVE-2023-0376 published?: CVE-2023-0376 was published on 2024-01-16 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/b1aa6f32-c1d5-4fc6-9a4e-d4c5fae78389/

Affected products (1)

cpe:2.3:a:themeum:qubely:*:*:*:*:*:wordpress:*:*

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