How severe is CVE-2020-36962?

No CVSS score has been assigned to CVE-2020-36962 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2020-36962?

CVE-2020-36962 affects the following packages: tendenci (PyPI). Ecosystems affected: PyPI.

How do I fix CVE-2020-36962?

Update tendenci to 12.3.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-36962 is resolved across your whole dependency graph.

How do I detect CVE-2020-36962 in my PyPI dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for tendenci, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2020-36962 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2020-36962 actively exploited in the wild?

No public exploit code has been indexed for CVE-2020-36962 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2020-36962?

CVE-2020-36962 has an EPSS (Exploit Prediction Scoring System) score of 12.4%, placing it in the 96th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score warrants monitoring and prompt remediation.

What type of vulnerability is CVE-2020-36962?

CVE-2020-36962 is classified as CWE-1236 (CWE-1236). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2020-36962 published, and has it been updated?

CVE-2020-36962 was published on January 28, 2026 and was last updated on October 20, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐍 PyPI

Not in CISA KEV

CVE-2020-36962 — tendenci

Fix: tendenci/tendenci@3e37622

CVE-2020-36962 is a CWE-1236 vulnerability in tendenci. EPSS puts its 30-day exploitation probability at 12.4% (96th percentile). A fix is available for tendenci — see the affected versions and patch details below.

Tendenci is Vulnerable to CSV Formula Injection through its Contact Form Message Field

Also known asGHSA-4q3w-jgfx-4792PYSEC-2026-136

Published

Jan 28, 2026

Updated

Oct 20, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.
CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.

Exploitation and automatability from CISA’s SSVC triage for CVE-2020-36962.

EPSS Exploitation Probability

via FIRST.org ↗

12.4%probability of exploitation in next 30 days

Moderate Risk-0.10%

Lower risk than most CVEs96th percentile — riskier than 96% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

🐍tendenci

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Tendenci 12.3.1 contains a CSV formula injection vulnerability in the contact form message field that allows attackers to inject malicious formulas during export. Attackers can submit crafted payloads like '=10+20+cmd|' /C calc'!A0' in the message field to trigger arbitrary command execution when the CSV is opened in spreadsheet applications.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`tendenci`	all versions	12.3.2`pip install --upgrade 'tendenci==12.3.2'`

Affected Products

1 product · 1 configurations

Application

tendencitendenci

1 version

12.3.1

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for tendenci, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update tendenci to 12.3.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-36962 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

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