CVE-2018-17057Tcpdf Insecure Deserialization
TCPDF vulnerable to attackers triggering deserialization of arbitrary data
Published Oct 6, 2022 · Updated Oct 13, 2026 · Also known as DEBIAN-CVE-2018-17057, GHSA-5hw4-m7f3-hhx8, UBUNTU-CVE-2018-17057
Key Facts
Patch immediately- CVE-2018-17057 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Limesurvey, Tcpdf (Tecnick), fooman/tcpdf (composer) and 3 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 26% probability of exploitation in the next 30 days.
- Fixed versions are available, including fooman/tcpdf 6.2.22, la-haute-societe/tcpdf 6.2.22, Limesurvey 3.16.0.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3.1
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
26%
Higher than 97.9% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
48/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
2
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
- advisoryhttps://contao.org/en/news/security-vulnerability-cve-2018-17057.html
- advisoryhttps://github.com/FriendsOfPHP/security-advisories/blob/master/fooman/tcpdf/CVE-2018-17057.yaml
- advisoryhttps://github.com/FriendsOfPHP/security-advisories/blob/master/la-haute-societe/tcpdf/CVE-2018-17057.yaml
- advisoryhttps://github.com/FriendsOfPHP/security-advisories/blob/master/spoonity/tcpdf/CVE-2018-17057.yaml
- advisoryhttps://github.com/FriendsOfPHP/security-advisories/blob/master/tecnickcom/tcpdf/CVE-2018-17057.yaml
- advisoryhttps://github.com/FriendsOfPHP/security-advisories/blob/master/wallabag/tcpdf/CVE-2018-17057.yaml
Description
An issue was discovered in TCPDF before 6.2.22. Attackers can trigger deserialization of arbitrary data via the phar:// wrapper.
Affected Products
22 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| LimesurveyLimesurvey | See advisory | 3.16.0 |
| TcpdfTecnick | See advisory | 6.2.22 |
| fooman/tcpdfcomposer | See advisory | 6.2.22 |
| la-haute-societe/tcpdfcomposer | See advisory | 6.2.22 |
| spoonity/tcpdfcomposer | See advisory | 6.2.22 |
Patched Releases
fooman/tcpdf
6.2.22
la-haute-societe/tcpdf
6.2.22
Limesurvey
3.16.0
spoonity/tcpdf
6.2.22
Tcpdf
6.2.26+dfsg-1, 6.2.22
tecnickcom/tcpdf
6.2.22
Timeline
Publicly disclosed
Oct 6, 2022
Last updated
Oct 13, 2026
Weakness Type
- CWE-502 Deserialization of Untrusted Data
References
- advisorycontao.org · CVE-2018-17057
- advisorygithub.com · CVE-2018-17057
- advisorygithub.com · CVE-2018-17057
- advisorygithub.com · CVE-2018-17057
- advisorygithub.com · CVE-2018-17057
FAQ
Common Questions.
An issue was discovered in TCPDF before 6.2.22.
Affected: Limesurvey; Tcpdf (Tecnick); fooman/tcpdf (composer), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including fooman/tcpdf 6.2.22, la-haute-societe/tcpdf 6.2.22, Limesurvey 3.16.0.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2018-17057 On Your Attack Surface?
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