CVE-2018-20677

mediumpriority · track · 25EPSS 0.040 · 90 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

3.98% (90th) EPSS

CVSS 4.3 · medium

Is it mine?

26 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

In Bootstrap before 3.4.0, XSS is possible in the affix configuration target property.

cvss

Technical severity, 0–10. One row per scoring source.

6.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v3.06.1mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.06.1mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondary · OSV

v3.05.6mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.16.1mediumAV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondary · FSTEC (BDU) RU

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-79USprimaryCWE-79USCWE-79US

affected products (26)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat Single Sign On 7.3all versionscert_bundDEcpe:/a:redhat:single_sign_on:7.3
n/a n/a≤ n/aenisa_euvdEU
Getbootstrap Bootstrap≤ 3.4.0fstec_bduRU
Red Hat Inc. Red Hat Descision Manager≤ 7fstec_bduRU
Red Hat Inc. Red Hat Enterprise Linux≤ 7fstec_bduRU
Red Hat Inc. Red Hat Enterprise Linux≤ 8fstec_bduRU
Red Hat Inc. Red Hat OpenStack Platform≤ 10.0 (Newton)fstec_bduRU
Red Hat Inc. Red Hat OpenStack Platform≤ 8.0 (Liberty)fstec_bduRU
Red Hat Inc. Red Hat OpenStack Platform≤ 15 (Stein)fstec_bduRU
Red Hat Inc. Red Hat OpenStack Platform≤ 9.0 (Mitaka)fstec_bduRU
Red Hat Inc. Red Hat OpenStack Platform≤ 14.0 (Rocky)fstec_bduRU
Red Hat Inc. Red Hat OpenStack Platform≤ 13.0 (Queens)fstec_bduRU
Red Hat Inc. Red Hat Process Automation Manager≤ 7fstec_bduRU
Red Hat Inc. Red Hat Single Sign-On≤ 7.3fstec_bduRU
Red Hat Inc. Red Hat Virtualization Engine≤ 4.3fstec_bduRU
getbootstrap bootstrap< 3.4.0nvdUScpe:2.3:a:getbootstrap:bootstrap:*:*:*:*:*:*:*:*
Maven org.webjars:bootstrap< 3.4.0osvUSpkg:maven/org.webjars/bootstrap

showing 20 of 26

advisories (4)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2022-1947Red Hat Single Sign On: Mehrere SchwachstellenDeutsch2019-06-11csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Red Hat Single Sign On ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen, einen Denial of Service Zustand hervorzurufen, Informationen auszuspähen, Sicherheitsvorkehrungen zu umgehen oder beliebigen Programmcode auszuführen.
WID-SEC-W-2023-0851IBM Maximo Asset Management: Mehrere Schwachstellen ermöglichen Cross-Site ScriptingDeutsch2023-04-04csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in IBM Maximo Asset Management ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen.
WID-SEC-W-2023-1369IBM Business Automation Workflow: Mehrere Schwachstellen ermöglichen Cross-Site ScriptingDeutsch2023-06-05csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in IBM Business Automation Workflow ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen.
GHSA-ph58-4vrj-w6hrbootstrap Cross-site Scripting vulnerability2019-01-17ghsa · osvUS
In Bootstrap before 3.4.0, XSS is possible in the affix configuration target property.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd osv NVD CVE.org MITRE

published 2019-01-09modified 2026-06-17

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+53007 more

references (58)

External citations — patches, advisories, analysis.

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