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CVE-2023-33733

26
FAUCET Score

CVE-2023-33733 is a high-severity arbitrary code execution vulnerability affecting ReportLab versions up to 3.6.12, allowing attackers to execute malicious code by providing a specially crafted PDF file. This vulnerability has a CVSS score of 7.8, indicating a high impact with complete compromise of confidentiality, integrity, and availability, and requires user interaction (UI:R) for exploitation. While not listed in CISA's KEV catalog, an exploit has been publicly released, and it has garnered significant community discussion and media coverage, including an article from BleepingComputer.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.6.12CPE matchmatch criteria
cpe:2.3:a:reportlab:reportlab:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.12%
Probability of exploitation in next 30 days
EPSS Percentile
80.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0212 is in the 80th percentile among its peer group of 11,616 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

pippatch availablevia ghsa
Product: reportlabFixed in: 3.6.13
redhatno patchvia redhat_api
Product: Red Hat Quay 3Fixed in: python-reportlab

Vendor Advisories (2)

pipGHSA-9q9m-c65c-37pqhigh

Reportlab vulnerable to remote code execution

Jun 5, 2023
redhatCVE-2023-33733Important

python-reportlab: remote code execution via supplying a crafted PDF file

Jun 5, 2023

References

lists.debian.org / debian-lts-announce/2024/10/msg00008.html
github.com / c53elyas/CVE-2023-33733
ExploitThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/36WOY22ECJCPOXHVTNCHEWOQLL7JSWP4
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/6ALE727IRACYBTTOFIFG57RS4OA2SHIJ