CVE-2018-5158
Status: ModifiedHigh (8.8)—💥 PoC
The PDF viewer does not sufficiently sanitize PostScript calculator functions, allowing malicious JavaScript to be injected through a crafted PDF file. This JavaScript can then be run with the permissions of the PDF viewer by its worker. This vulnerability affects Firefox ESR < 52.8 and Firefox < 60.
CVSS
- Version: 3.0
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Base score: 8.8
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 10%
- Percentile among all scored CVEs: 96
- Score date: 10/7/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
💥 Public exploits
Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.
- Proof of concept on GitHub (unverified) · List of proofs of concept on GitHub
⚠️ GitHub proofs of concept are not verified: some are fake or contain malware. Never run them outside an isolated lab.
Affected technologies (9)
CWEs
- CWE-94
References
- http://www.securityfocus.com/bid/104136
- http://www.securitytracker.com/id/1040896
- https://access.redhat.com/errata/RHSA-2018:1414
- https://access.redhat.com/errata/RHSA-2018:1415
- https://bugzilla.mozilla.org/show_bug.cgi?id=1452075
- https://lists.debian.org/debian-lts-announce/2018/05/msg00007.html
- https://security.gentoo.org/glsa/201810-01
- https://usn.ubuntu.com/3645-1/
- https://www.debian.org/security/2018/dsa-4199
- https://www.mozilla.org/security/advisories/mfsa2018-11/
- https://www.mozilla.org/security/advisories/mfsa2018-12/
- http://www.securityfocus.com/bid/104136
- http://www.securitytracker.com/id/1040896
- https://access.redhat.com/errata/RHSA-2018:1414
- https://access.redhat.com/errata/RHSA-2018:1415
- https://bugzilla.mozilla.org/show_bug.cgi?id=1452075
- https://lists.debian.org/debian-lts-announce/2018/05/msg00007.html
- https://security.gentoo.org/glsa/201810-01
- https://usn.ubuntu.com/3645-1/
- https://www.debian.org/security/2018/dsa-4199
- https://www.mozilla.org/security/advisories/mfsa2018-11/
- https://www.mozilla.org/security/advisories/mfsa2018-12/
Raw JSON (NVD)
Show
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