CVE-2021-24606
CVE-2021-24606 is a high-severity vulnerability in Offshorewebmaster Availability Calendar 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)
- CVSS v2: 6.5
- EPSS exploit prediction: 1% (67th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-89
- Affected product: Offshorewebmaster Availability Calendar
- Published:
- Last modified:
Description
The Availability Calendar WordPress plugin before 1.2.1 does not escape the category attribute from its shortcode before using it in a SQL statement, leading to a SQL Injection issue, which can be exploited by any user able to add shortcode to posts/pages, such as contributor+
Frequently asked questions
- What is CVE-2021-24606?
- The Availability Calendar WordPress plugin before 1.2.1 does not escape the category attribute from its shortcode before using it in a SQL statement, leading to a SQL Injection issue, which can be exploited by any user able to add shortcode to posts/pages, such as contributor+
- How severe is CVE-2021-24606?
- CVE-2021-24606 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-24606 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-24606?
- CVE-2021-24606 affects Offshorewebmaster Availability Calendar. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-24606?
- 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-2021-24606 published?
- CVE-2021-24606 was published on 2021-09-20 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:offshorewebmaster:availability_calendar:*:*:*:*:*:wordpress:*:*
More vulnerabilities in Offshorewebmaster Availability Calendar
- CVE-2023-48744 — Medium (CVSS 5.4): Cross-Site Request Forgery (CSRF) vulnerability in Offshore Web Master Availability Calendar allows Cross Site Request…
- CVE-2021-24604 — Medium (CVSS 4.8): The Availability Calendar WordPress plugin before 1.2.2 does not sanitise or escape its Category Names before…
All CVEs affecting Offshorewebmaster Availability Calendar →
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