CVE-2019-11454: canonical ubuntu_linux
Vulnerability summary
CVE-2019-11454 is a medium (CVSS 6.1) vulnerability in canonical ubuntu_linux. EPSS estimates a 2.41% chance of exploitation in the next 30 days, higher than 84.1% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 6.1, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 4 · Duplicates 1 · Related 1Timeline
- 22-04-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Persistent cross-site scripting (XSS) in http/cervlet.c in Tildeslash Monit before 5.25.3 allows a remote unauthenticated attacker to introduce arbitrary JavaScript via manipulation of an unsanitized user field of the Authorization header for HTTP Basic Authentication, which is mishandled during an _viewlog operation.
CVSS metrics
6 scores · 4 sources · 3 versions- OSV · AlpineEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- OSV · UbuntuEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- OSV · DebianEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
2.41%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.41% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploits
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- monit< 1:5.25.3-1
- debian_linuxEOL8.0 | 9.0
Alpine1 product
- monit< 5.24.0-r2 | < 5.25.2-r0 | < 5.25.2-r1
Canonical1 product
- ubuntu_linuxEOL18.10 | 19.04
Fedoraproject1 product
- fedoraEOL31 | 32
Mmonit1 product
- monit< 5.25.3
Ubuntu1 product
- monit< 1:5.6-2ubuntu0.1+esm2 | < 1:5.16-2ubuntu0.2+esm1 | < 1:5.25.1-1ubuntu0.1~esm1
6 vendors · 7 products
References
14 links- bitbucket.org/tildeslash/monit/commits/328f60773057641c4b2075fab9820145e95b728cX Refsource MISCPatchThird Party AdvisoryREPORT
- bitbucket.org/tildeslash/monit/commits/1a8295eab6815072a18019b668fe084945b751f3X Refsource MISCPatchThird Party AdvisoryREPORT
- github.com/dzflack/exploits/blob/master/unix/monit_xss.pyX Refsource MISCExploitThird Party AdvisoryREPORT
lists.debian.org/debian-lts-announce/2019/04/msg00028.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.debian.org/debian-lts-announce/2021/12/msg00018.htmlMailing ListX Refsource MLISTThird Party Advisory