How severe is CVE-2024-8856?

CVE-2024-8856 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-2024-8856 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 94% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-8856?

CVE-2024-8856 affects Revmakx Backup And Staging By Wp Time Capsule. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-8856?

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.

Does CVE-2024-8856 have an EU (EUVD) identifier?

Yes. CVE-2024-8856 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-49578.

When was CVE-2024-8856 published?

CVE-2024-8856 was published on 2024-11-16 and last updated on 2026-06-17.

CVE-2024-8856

CVE-2024-8856 is a critical-severity vulnerability in Revmakx Backup And Staging By Wp Time Capsule with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 94% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 94% (100th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-49578
Weakness: CWE-434
Affected product: Revmakx Backup And Staging By Wp Time Capsule
Published: 2024-11-16
Last modified: 2026-06-17

Description

The Backup and Staging by WP Time Capsule plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the the UploadHandler.php file and no direct file access prevention in all versions up to, and including, 1.22.21. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Frequently asked questions

What is CVE-2024-8856?: The Backup and Staging by WP Time Capsule plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the the UploadHandler.php file and no direct file access prevention in all versions up to, and including, 1.22.21. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
How severe is CVE-2024-8856?: CVE-2024-8856 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-2024-8856 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 94% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-8856?: CVE-2024-8856 affects Revmakx Backup And Staging By Wp Time Capsule. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-8856?: 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.
Does CVE-2024-8856 have an EU (EUVD) identifier?: Yes. CVE-2024-8856 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-49578.
When was CVE-2024-8856 published?: CVE-2024-8856 was published on 2024-11-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:revmakx:backup_and_staging_by_wp_time_capsule:*:*:*:*:*:wordpress:*:*

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