CVE-2021-25808
CVE-2021-25808 is a high-severity vulnerability in Bludit with a CVSS 3.x base score of 7.8. 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-94.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 1% (65th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-94
- Affected product: Bludit
- Published:
- Last modified:
Description
A code injection vulnerability in backup/plugin.php of Bludit 3.13.1 allows attackers to execute arbitrary code via a crafted ZIP file.
Frequently asked questions
- What is CVE-2021-25808?
- A code injection vulnerability in backup/plugin.php of Bludit 3.13.1 allows attackers to execute arbitrary code via a crafted ZIP file.
- How severe is CVE-2021-25808?
- CVE-2021-25808 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-25808 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-25808?
- CVE-2021-25808 affects Bludit. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-25808?
- 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.
- When was CVE-2021-25808 published?
- CVE-2021-25808 was published on 2021-07-23 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:bludit:bludit:3.13.1:*:*:*:*:*:*:*
More vulnerabilities in Bludit
- CVE-2026-25101 — Critical (CVSS 9.8): Bludit allows user's session identifier to be set before authentication. The value of this session ID stays the same…
- CVE-2020-18879 — Critical (CVSS 9.8): Unrestricted File Upload in Bludit v3.8.1 allows remote attackers to execute arbitrary code by uploading malicious…
- CVE-2019-17240 — Critical (CVSS 9.8): bl-kernel/security.class.php in Bludit 3.9.2 allows attackers to bypass a brute-force protection mechanism by using…
- CVE-2020-20495 — Critical (CVSS 9.1): bludit v3.13.0 contains an arbitrary file deletion vulnerability in the backup plugin via the `deleteBackup' parameter.
- CVE-2020-18190 — Critical (CVSS 9.1): Bludit v3.8.1 is affected by directory traversal. Remote attackers are able to delete arbitrary files via…
- CVE-2026-25099 — High (CVSS 8.8): Bludit’s API plugin allows an authenticated attacker with a valid API token to upload files of any type and extension…
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- CVE-2026-10561 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined…
- CVE-2026-25470 — Critical (CVSS 10.0): Improper Control of Generation of Code ('Code Injection') vulnerability in ACPT ACPT (Pro) - Custom Post Types Plugin…
- CVE-2026-48836 — Critical (CVSS 10.0): Unauthenticated Remote Code Execution (RCE) in Easy Invoice <= 2.1.19 versions.