How severe is CVE-2021-24878?

CVE-2021-24878 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-2021-24878 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24878?

CVE-2021-24878 affects Supportcandy. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24878?

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

When was CVE-2021-24878 published?

CVE-2021-24878 was published on 2022-02-07 and last updated on 2026-06-17.

CVE-2021-24878

CVE-2021-24878 is a medium-severity vulnerability in Supportcandy 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: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Supportcandy
Published: 2022-02-07
Last modified: 2026-06-17

Description

The SupportCandy WordPress plugin before 2.2.7 does not sanitise and escape the query string before outputting it back in pages with the [wpsc_create_ticket] shortcode embed, leading to a Reflected Cross-Site Scripting issue

Frequently asked questions

What is CVE-2021-24878?: The SupportCandy WordPress plugin before 2.2.7 does not sanitise and escape the query string before outputting it back in pages with the [wpsc_create_ticket] shortcode embed, leading to a Reflected Cross-Site Scripting issue
How severe is CVE-2021-24878?: CVE-2021-24878 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-2021-24878 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24878?: CVE-2021-24878 affects Supportcandy. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24878?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24878 published?: CVE-2021-24878 was published on 2022-02-07 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/d2f1fd60-5e5e-4e38-9559-ba2d14ae37bf

Affected products (1)

cpe:2.3:a:supportcandy:supportcandy:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Supportcandy

CVE-2023-1730 — Critical (CVSS 9.8): The SupportCandy WordPress plugin before 3.1.5 does not validate and escape user input before using it in an SQL…
CVE-2019-11223 — Critical (CVSS 9.8): An Unrestricted File Upload Vulnerability in the SupportCandy plugin through 2.0.0 for WordPress allows remote…
CVE-2023-2719 — High (CVSS 8.8): The SupportCandy WordPress plugin before 3.1.7 does not properly sanitise and escape the `id` parameter for an Agent in…
CVE-2021-24879 — High (CVSS 8.8): The SupportCandy WordPress plugin before 2.2.7 does not have CSRF check in the wpsc_tickets AJAX action, nor has any…
CVE-2021-24839 — High (CVSS 7.5): The SupportCandy WordPress plugin before 2.2.5 does not have authorisation and CSRF checks in its wpsc_tickets AJAX…
CVE-2023-2805 — High (CVSS 7.2): The SupportCandy WordPress plugin before 3.1.7 does not properly sanitise and escape the agents[] parameter in the…

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