CVE-2024-12878
CVE-2024-12878 is a high-severity vulnerability in Thedevoice Lazy Blocks with a CVSS 3.x base score of 7.1. 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-79.
Key facts
- Severity: High (CVSS 3.x base score 7.1)
- EPSS exploit prediction: 1% (44th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-5312
- Weakness: CWE-79
- Affected product: Thedevoice Lazy Blocks
- Published:
- Last modified:
Description
The Custom Block Builder WordPress plugin before 3.8.3 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.
Frequently asked questions
- What is CVE-2024-12878?
- The Custom Block Builder WordPress plugin before 3.8.3 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.
- How severe is CVE-2024-12878?
- CVE-2024-12878 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
- Is CVE-2024-12878 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-12878?
- CVE-2024-12878 affects Thedevoice Lazy Blocks. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-12878?
- 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.
- Does CVE-2024-12878 have an EU (EUVD) identifier?
- Yes. CVE-2024-12878 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-5312.
- When was CVE-2024-12878 published?
- CVE-2024-12878 was published on 2025-02-26 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:thedevoice:lazy_blocks:*:*:*:*:*:wordpress:*:*
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