How severe is CVE-2023-6486?

CVE-2023-6486 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-6486 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6486?

CVE-2023-6486 affects Brainstormforce Spectra. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6486?

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

Does CVE-2023-6486 have an EU (EUVD) identifier?

Yes. CVE-2023-6486 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58717.

When was CVE-2023-6486 published?

CVE-2023-6486 was published on 2024-04-09 and last updated on 2026-06-17.

CVE-2023-6486

CVE-2023-6486 is a medium-severity vulnerability in Brainstormforce Spectra with a CVSS 3.x base score of 6.4. 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 6.4)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-58717
Weakness: CWE-79
Affected product: Brainstormforce Spectra
Published: 2024-04-09
Last modified: 2026-06-17

Description

The Spectra – WordPress Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Custom CSS metabox in all versions up to and including 2.10.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Frequently asked questions

What is CVE-2023-6486?: The Spectra – WordPress Gutenberg Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Custom CSS metabox in all versions up to and including 2.10.3 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
How severe is CVE-2023-6486?: CVE-2023-6486 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-6486 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6486?: CVE-2023-6486 affects Brainstormforce Spectra. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6486?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-6486 have an EU (EUVD) identifier?: Yes. CVE-2023-6486 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-58717.
When was CVE-2023-6486 published?: CVE-2023-6486 was published on 2024-04-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:brainstormforce:spectra:*:*:*:*:*:wordpress:*:*

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