How severe is CVE-2021-38733?

CVE-2021-38733 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-2021-38733 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-2021-38733?

CVE-2021-38733 affects Sem-cms Semcms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-38733?

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.

When was CVE-2021-38733 published?

CVE-2021-38733 was published on 2022-10-28 and last updated on 2026-06-17.

CVE-2021-38733

CVE-2021-38733 is a critical-severity vulnerability in Sem-cms Semcms 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-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Sem-cms Semcms
Published: 2022-10-28
Last modified: 2026-06-17

Description

SEMCMS SHOP v 1.1 is vulnerable to SQL Injection via Ant_BlogCat.php.

Frequently asked questions

What is CVE-2021-38733?: SEMCMS SHOP v 1.1 is vulnerable to SQL Injection via Ant_BlogCat.php.
How severe is CVE-2021-38733?: CVE-2021-38733 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-2021-38733 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-2021-38733?: CVE-2021-38733 affects Sem-cms Semcms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-38733?: 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.
When was CVE-2021-38733 published?: CVE-2021-38733 was published on 2022-10-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sem-cms:semcms:1.1:*:*:*:*:*:*:*

More vulnerabilities in Sem-cms Semcms

CVE-2025-25686 — Critical (CVSS 9.8): semcms <=5.0 is vulnerable to SQL Injection in SEMCMS_Fuction.php.
CVE-2024-46103 — Critical (CVSS 9.8): SEMCMS 4.8 is vulnerable to SQL Injection via SEMCMS_Main.php.
CVE-2024-30938 — Critical (CVSS 9.8): SQL Injection vulnerability in SEMCMS v.4.8 allows a remote attacker to obtain sensitive information via the ID…
CVE-2024-31012 — Critical (CVSS 9.8): An issue was discovered in SEMCMS v.4.8, allows remote attackers to execute arbitrary code, escalate privileges, and…
CVE-2024-25422 — Critical (CVSS 9.8): SQL Injection vulnerability in SEMCMS v.4.8 allows a remote attacker to execute arbitrary code and obtain sensitive…
CVE-2023-50563 — Critical (CVSS 9.8): Semcms v4.8 was discovered to contain a SQL injection vulnerability via the AID parameter at SEMCMS_Function.php.

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