CVE-2021-27817
CVE-2021-27817 is a critical-severity vulnerability in Shopxo with a CVSS 3.x base score of 9.8. 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-434.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 3% (87th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-434
- Affected product: Shopxo
- Published:
- Last modified:
Description
A remote command execution vulnerability in shopxo 1.9.3 allows an attacker to upload malicious code generated by phar where the suffix is JPG, which is uploaded after modifying the phar suffix.
Frequently asked questions
- What is CVE-2021-27817?
- A remote command execution vulnerability in shopxo 1.9.3 allows an attacker to upload malicious code generated by phar where the suffix is JPG, which is uploaded after modifying the phar suffix.
- How severe is CVE-2021-27817?
- CVE-2021-27817 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-27817 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-27817?
- CVE-2021-27817 affects Shopxo. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-27817?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2021-27817 published?
- CVE-2021-27817 was published on 2021-03-15 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:shopxo:shopxo:1.9.3:*:*:*:*:*:*:*
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