How severe is CVE-2021-26644?

CVE-2021-26644 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-26644 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-26644?

CVE-2021-26644 affects Mangboard Mangboard Wp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-26644?

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-2021-26644 published?

CVE-2021-26644 was published on 2023-01-20 and last updated on 2026-06-17.

CVE-2021-26644

CVE-2021-26644 is a high-severity vulnerability in Mangboard Mangboard Wp with a CVSS 3.x base score of 8.8. 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: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Mangboard Mangboard Wp
Published: 2023-01-20
Last modified: 2026-06-17

Description

SQL-Injection vulnerability caused by the lack of verification of input values for the table name of DB used by the Mangboard bulletin board. A remote attacker can use this vulnerability to execute arbitrary code on the server where the bulletin board is running.

Frequently asked questions

What is CVE-2021-26644?: SQL-Injection vulnerability caused by the lack of verification of input values for the table name of DB used by the Mangboard bulletin board. A remote attacker can use this vulnerability to execute arbitrary code on the server where the bulletin board is running.
How severe is CVE-2021-26644?: CVE-2021-26644 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-26644 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26644?: CVE-2021-26644 affects Mangboard Mangboard Wp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-26644?: 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-2021-26644 published?: CVE-2021-26644 was published on 2023-01-20 and last updated on 2026-06-17.

References

https://boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=67127

Affected products (1)

cpe:2.3:a:mangboard:mangboard_wp:2.0.3:*:*:*:basic:wordpress:*:*

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