How severe is CVE-2021-24956?

CVE-2021-24956 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-24956 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24956?

CVE-2021-24956 affects Adenion Blog2social. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24956?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-24956 published?

CVE-2021-24956 was published on 2021-12-21 and last updated on 2026-06-17.

CVE-2021-24956

CVE-2021-24956 is a medium-severity vulnerability in Adenion Blog2social with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Adenion Blog2social
Published: 2021-12-21
Last modified: 2026-06-17

Description

The Blog2Social: Social Media Auto Post & Scheduler WordPress plugin before 6.8.7 does not sanitise and escape the b2sShowByDate parameter before outputting it back in an admin page, leading to a Reflected Cross-Site Scripting issue

Frequently asked questions

What is CVE-2021-24956?: The Blog2Social: Social Media Auto Post & Scheduler WordPress plugin before 6.8.7 does not sanitise and escape the b2sShowByDate parameter before outputting it back in an admin page, leading to a Reflected Cross-Site Scripting issue
How severe is CVE-2021-24956?: CVE-2021-24956 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-24956 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24956?: CVE-2021-24956 affects Adenion Blog2social. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24956?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24956 published?: CVE-2021-24956 was published on 2021-12-21 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/5882ea89-f463-4f0b-a624-150bbaf967c2

Affected products (1)

cpe:2.3:a:adenion:blog2social:*:*:*:*:*:wordpress:*:*

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