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Vulnerability record · CVE-2023-33733 · published 5 June 2023

CVE-2023-33733: Reportlab code injection vulnerability

Reportlab · Reportlab

Reportlab up to v3.6.12 allows attackers to execute arbitrary code via supplying a crafted PDF file.

7.8 CVSS 3.1 High EPSS 2.1% · top 18.9% CWE-94 · Code injection
7.8CVSS 3.1 base score
2.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Reportlab up to v3.6.12 allows attackers to execute arbitrary code via supplying a crafted PDF file.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/c53elyas/CVE-2023-33733 ExploitThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36WOY22ECJCPOXHVTNCHEWO
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ALE727IRACYBTTOFIFG57R
https://github.com/c53elyas/CVE-2023-33733 ExploitThird Party Advisory
https://lists.debian.org/debian-lts-announce/2024/10/msg00008.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36WOY22ECJCPOXHVTNCHEWO
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ALE727IRACYBTTOFIFG57R

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2019-19450Reportlab xml injection vulnerabilityparaparser in ReportLab before 3.5.31 allows remote code execution because start_unichar in paraparser.py evaluates untrusted user input in a unichar…EPSS 6.0%9.8CVE-2019-17626Reportlab xml injection vulnerabilityReportLab through 3.5.26 allows remote code execution because of toColor(eval(arg)) in colors.py, as demonstrated by a crafted XML document with '<sp…EPSS 10%6.5CVE-2020-28463Reportlab server-side request forgery (ssrf) vulnerabilityAll versions of package reportlab are vulnerable to Server-side Request Forgery (SSRF) via img tags. In order to reduce risk, use trustedSchemes & tr…EPSS 1.5%

Source: NIST National Vulnerability Database (record CVE-2023-33733), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.