How severe is CVE-2022-4527?

CVE-2022-4527 has a CVSS score of 3.5/10, rated LOW. Review your exposure and patch according to your risk tolerance.

Which packages are affected by CVE-2022-4527?

CVE-2022-4527 affects the following packages: collective-task (PyPI). Ecosystems affected: PyPI.

How do I fix CVE-2022-4527?

Update collective-task to 3.0.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-4527 is resolved across your whole dependency graph.

How do I detect CVE-2022-4527 in my PyPI dependencies?

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

How do I mitigate CVE-2022-4527 if there is no patch (or I can't update yet)?

Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Is CVE-2022-4527 actively exploited in the wild?

No public exploit code has been indexed for CVE-2022-4527 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-2022-4527?

CVE-2022-4527 has an EPSS (Exploit Prediction Scoring System) score of 0.6%, placing it in the 48th 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 indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2022-4527?

CVE-2022-4527 is classified as Cross-site Scripting (XSS) (CWE-79). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

When was CVE-2022-4527 published, and has it been updated?

CVE-2022-4527 was published on December 15, 2022 and was last updated on October 28, 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

LOW severity

CVE-2022-4527 — collective-task

LOWFix: collective/collective.task@1aac7f8

CVE-2022-4527 is a low-severity (CVSS 3.5) Cross-site Scripting (XSS) vulnerability in collective-task. A fix is available for collective-task — see the affected versions and patch details below.

collective.task table.py AssignedGroupColumn cross site scripting

Also known asGHSA-4r9h-x77w-mffvPYSEC-2022-42990

Published

Dec 15, 2022

Updated

Oct 28, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

0.6%probability of exploitation in next 30 days

Lower Risk-0.00%

Lower risk than most CVEs48th percentile — riskier than 48% of all scored CVEsHighest risk

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

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

🐍collective-task

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

A vulnerability was found in collective.task up to 3.0.8. It has been classified as problematic. This affects the function renderCell/AssignedGroupColumn of the file src/collective/task/browser/table.py. The manipulation leads to cross site scripting. It is possible to initiate the attack remotely. Upgrading to version 3.0.9 is able to address this issue. The name of the patch is 1aac7f83fa2c2b41d59ba02748912953461f3fac. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-215907.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`collective-task`	all versions	3.0.9`pip install --upgrade 'collective-task==3.0.9'`

Affected Products

1 product · 1 configurations

Application

collective.taskcollective.task_project

< 3.0.9

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for collective-task, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update collective-task to 3.0.9 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-4527 is resolved across your whole dependency graph.
Workarounds
Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2022-4527 in your dependencies?

Find it across PyPI, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

3.5/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

CWE Classification

CWE-79Cross-site Scripting (XSS)

Weaponization

No Nuclei template, Metasploit module or public proof-of-concept found.

Timeline

Disclosed

Dec 15, 2022

Last updated

Oct 28, 2026

Identifiers

CVE-2022-4527

GHSA-4r9h-x77w-mffv

PYSEC-2022-42990

References

Advisorygithub.com · CVE 2022 4527.json Advisorynvd.nist.gov · CVE 2022 4527 Advisoryvuldb.com Fixgithub.com · 1aac7f83fa2c2b41d59ba02748912953461f3fac Webgithub.com · 3.0.9 Webgithub.com · 3.0.10 Webgithub.com · PYSEC 2022 42990.yaml Packagegithub.com · collective.task

Related vulnerabilities

This CVE is low severity; 8 of 8 other CVEs with CWE-79 are rated as high or higher (top: critical).

CVE-2026-88986CVE-2026-63197CVE-2026-55649CVE-2026-113787CVE-2026-44267CVE-2026-96632CVE-2026-9086CVE-2026-118246Browse all CWE-79

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedOct 28, 2026