How severe is CVE-2022-0352?

CVE-2022-0352 has a CVSS score of 8.5/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2022-0352?

CVE-2022-0352 affects the following packages: calibreweb (PyPI). Ecosystems affected: PyPI.

How do I fix CVE-2022-0352?

Update calibreweb to 0.6.16 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-0352 is resolved across your whole dependency graph.

How do I detect CVE-2022-0352 in my PyPI dependencies?

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

How do I mitigate CVE-2022-0352 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-2022-0352 actively exploited in the wild?

Yes. There are 1 known exploit references for CVE-2022-0352, including 1 in-the-wild exploitation observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2022-0352?

CVE-2022-0352 has an EPSS (Exploit Prediction Scoring System) score of 0.9%, placing it in the 57th 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-2022-0352?

CVE-2022-0352 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-2022-0352 published, and has it been updated?

CVE-2022-0352 was published on January 28, 2022 and was last updated on August 12, 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

HIGH severity

CVE-2022-0352 — calibreweb

HIGHFix: janeczku/calibre-web@6bf0753

CVE-2022-0352 is a high-severity (CVSS 8.5) Cross-site Scripting (XSS) vulnerability in calibreweb. 1 public exploit reference exists, so weaponization risk is real. A fix is available for calibreweb — see the affected versions and patch details below.

Cross-site Scripting (XSS) - Reflected in janeczku/calibre-web

Also known asGHSA-h56g-v4vp-q9q6PYSEC-2022-18

Published

Jan 28, 2022

Updated

Aug 12, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

1 known

Exploitation data as of Sep 29, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

0.9%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs57th percentile — riskier than 57% of all scored CVEsHighest risk

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

How urgent is this, really

CVE-2022-0352 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,386 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected

🐍calibreweb

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

Cross-site Scripting (XSS) - Reflected in Pypi calibreweb prior to 0.6.16.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`calibreweb`	all versions	0.6.16`pip install --upgrade 'calibreweb==0.6.16'`

Affected Products

1 product · 1 configurations

Application

calibre-webjaneczku

< 0.6.16

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Cross-site Scripting (XSS) - Reflected in Pypi calibreweb prior to 0.6.1…

huntr.devNVDFeb 2022

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for calibreweb, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update calibreweb to 0.6.16 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-0352 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

Cross-site Scripting (XSS) - Reflected in Pypi calibreweb prior to 0.6.16.

O3 Security · Impact-Aware SCA

Is CVE-2022-0352 in your dependencies?

Find it across PyPI, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

8.5/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Raw vector

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

CWE Classification

CWE-79Cross-site Scripting (XSS)

Weaponization

No known public exploit tooling found.

Timeline

Disclosed

Jan 28, 2022

First exploit

Feb 2, 2022

5 days after disclosure — rapid exploitation

Last updated

Aug 12, 2026

Identifiers

CVE-2022-0352

GHSA-h56g-v4vp-q9q6

PYSEC-2022-18

References

Advisorygithub.com Advisorynvd.nist.gov Fixgithub.com Webhuntr.dev Webgithub.com Packagegithub.com

Related vulnerabilities

This CVE is high severity; 1 of 8 other CVEs affecting calibreweb is rated as high or higher (top: high).

CVE-2025-65858CVE-2025-6998CVE-2025-7404CVE-2021-3987CVE-2021-3986CVE-2021-3988CVE-2024-39123CVE-2022-2525

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedAug 12, 2026

CVE-2022-0352 — calibreweb

EPSS Exploitation Probability

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

Description

Affected Packages

Affected Products

Detection & mitigation playbook

Detect

Fix

Workarounds

Frequently Asked Questions

Is CVE-2022-0352 in your dependencies?