How severe is CVE-2021-25962?

CVE-2021-25962 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-25962 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25962?

CVE-2021-25962 affects Shuup. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-25962?

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-2021-25962 published?

CVE-2021-25962 was published on 2021-09-29 and last updated on 2026-06-17.

CVE-2021-25962

CVE-2021-25962 is a high-severity vulnerability in Shuup with a CVSS 3.x base score of 8.0. 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-1236.

Key facts

Severity: High (CVSS 3.x base score 8.0)
CVSS v2: 6.8
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1236
Affected product: Shuup
Published: 2021-09-29
Last modified: 2026-06-17

Description

“Shuup” application in versions 0.4.2 to 2.10.8 is affected by the “Formula Injection” vulnerability. A customer can inject payloads in the name input field in the billing address while buying a product. When a store administrator accesses the reports page to export the data as an Excel file and opens it, the payload gets executed.

Frequently asked questions

What is CVE-2021-25962?: “Shuup” application in versions 0.4.2 to 2.10.8 is affected by the “Formula Injection” vulnerability. A customer can inject payloads in the name input field in the billing address while buying a product. When a store administrator accesses the reports page to export the data as an Excel file and opens it, the payload gets executed.
How severe is CVE-2021-25962?: CVE-2021-25962 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-25962 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25962?: CVE-2021-25962 affects Shuup. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-25962?: 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-2021-25962 published?: CVE-2021-25962 was published on 2021-09-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:shuup:shuup:*:*:*:*:*:*:*:*

More vulnerabilities in Shuup

CVE-2021-25963 — Medium (CVSS 6.1): In Shuup, versions 1.6.0 through 2.10.8 are vulnerable to reflected Cross-Site Scripting (XSS) that allows execution of…

All CVEs affecting Shuup →

Other CWE-1236 (Improper Neutralization of Formula Elements in a CSV File) vulnerabilities

CVE-2026-31049 — Critical (CVSS 9.8): An issue in Hostbill v.2025-11-24 and 2025-12-01 allows a remote attacker to execute arbitrary code and escalate…
CVE-2020-36962 — Critical (CVSS 9.8): Tendenci 12.3.1 contains a CSV formula injection vulnerability in the contact form message field that allows attackers…
CVE-2021-47901 — Critical (CVSS 9.8): Dirsearch 0.4.1 contains a CSV injection vulnerability when using the --csv-report flag that allows attackers to inject…
CVE-2020-36941 — Critical (CVSS 9.8): Knockpy 4.1.1 contains a CSV injection vulnerability that allows attackers to inject malicious formulas into CSV…
CVE-2025-56267 — Critical (CVSS 9.8): A CSV injection vulnerability in the /id_profiles endpoint of Avigilon ACM v7.10.0.20 allows attackers to execute…
CVE-2023-47295 — Critical (CVSS 9.8): A CSV injection vulnerability in NCR Terminal Handler v1.5.1 allows attackers to execute arbitrary commands via…

Browse all CWE-1236 (Improper Neutralization of Formula Elements in a CSV File) vulnerabilities →