CVE-2026-30643
CVE-2026-30643 is a critical-severity vulnerability in Dedecms with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 1% (45th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-17960
- Weakness: CWE-94
- Affected product: Dedecms
- Published:
- Last modified:
Description
An issue was discovered in DedeCMS 5.7.118 allowing attackers to execute code via crafted setup tag values in a module upload.
Frequently asked questions
- What is CVE-2026-30643?
- An issue was discovered in DedeCMS 5.7.118 allowing attackers to execute code via crafted setup tag values in a module upload.
- How severe is CVE-2026-30643?
- CVE-2026-30643 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-2026-30643 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-30643?
- CVE-2026-30643 affects Dedecms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-30643?
- 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-2026-30643 have an EU (EUVD) identifier?
- Yes. CVE-2026-30643 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17960.
- When was CVE-2026-30643 published?
- CVE-2026-30643 was published on 2026-04-01 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:dedecms:dedecms:*:*:*:*:*:*:*:*
More vulnerabilities in Dedecms
- CVE-2026-30694 — Critical (CVSS 9.8): An issue in DedeCMS v.5.7.118 and before allows a remote attacker to execute arbitrary code via the array_filter…
- CVE-2024-35510 — Critical (CVSS 9.8): An arbitrary file upload vulnerability in /dede/file_manage_control.php of DedeCMS v5.7.114 allows attackers to execute…
- CVE-2024-35375 — Critical (CVSS 9.8): There is an arbitrary file upload vulnerability on the media add .php page in the backend of the website in version…
- CVE-2024-29661 — Critical (CVSS 9.8): A File Upload vulnerability in DedeCMS v5.7 allows a local attacker to execute arbitrary code via a crafted payload.
- CVE-2024-29684 — Critical (CVSS 9.8): DedeCMS v5.7 was discovered to contain a Cross-Site Request Forgery (CSRF) via the component…
- CVE-2023-40784 — Critical (CVSS 9.8): DedeCMS 5.7.102 has a File Upload vulnerability via uploads/dede/module_make.php.
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