How severe is CVE-2021-29654?

CVE-2021-29654 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-29654 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-29654?

CVE-2021-29654 affects Stackpath Ajaxsearchpro. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-29654?

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-2021-29654 published?

CVE-2021-29654 was published on 2021-04-14 and last updated on 2026-06-17.

CVE-2021-29654

CVE-2021-29654 is a high-severity vulnerability in Stackpath Ajaxsearchpro with a CVSS 3.x base score of 7.2. 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-502.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 6.5
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Stackpath Ajaxsearchpro
Published: 2021-04-14
Last modified: 2026-06-17

Description

AjaxSearchPro before 4.20.8 allows Deserialization of Untrusted Data (in the import database feature of the administration panel), leading to Remote Code execution.

Frequently asked questions

What is CVE-2021-29654?: AjaxSearchPro before 4.20.8 allows Deserialization of Untrusted Data (in the import database feature of the administration panel), leading to Remote Code execution.
How severe is CVE-2021-29654?: CVE-2021-29654 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-29654 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-29654?: CVE-2021-29654 affects Stackpath Ajaxsearchpro. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-29654?: 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-2021-29654 published?: CVE-2021-29654 was published on 2021-04-14 and last updated on 2026-06-17.

References

https://www.synacktiv.com/sites/default/files/2021-04/WP_AjaxSearchPro_Vulnerability.pdf

Affected products (1)

cpe:2.3:a:stackpath:ajaxsearchpro:*:*:*:*:*:wordpress:*:*

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