CVE-2019-10062: The HTMLSanitizer class in html-sanitizer.ts in all released versions of the Aurelia framework 1.x repository

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MEDIUM 6.1UPGRADE

CVE-2019-10062 is a medium-severity flaw (CVSS 6.1) affecting aurelia framework. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The HTMLSanitizer class in html-sanitizer.ts in all released versions of the Aurelia framework 1.x repository is vulnerable to XSS. The sanitizer only attempts to filter SCRIPT elements, which makes it feasible for remote attackers to conduct XSS attacks via (for example) JavaScript code in an attribute of various other elements. An attacker might also exploit a bug in how the SCRIPT string is processed by splitting and nesting them for example.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-05-13
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: bluespire

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-05-13 21:15 UTCPublished CVE record published
2026-06-17 02:10 UTCUpdated Record last modified

bluespire aurelia framework UPGRADE

Affected: >= 1.0.0 and <= 1.3.1

Fixed in: newer than 1.3.1

Safe to downgrade to: a release before 1.0.0

1. Check installed version

apt-cache policy aurelia-framework || rpm -q aurelia-framework || aurelia-framework --version

2. UPGRADE to newer than 1.3.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade aurelia-framework

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade aurelia-framework

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.0.0 (Debian / Ubuntu)

apt-cache madison aurelia-framework sudo apt install aurelia-framework=<VERSION_BEFORE_1.0.0> sudo apt-mark hold aurelia-framework

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list aurelia-framework sudo dnf downgrade aurelia-framework-<VERSION_BEFORE_1.0.0> sudo dnf versionlock add aurelia-framework

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-10062?

aurelia framework: upgrade to newer than 1.3.1. Exact commands for each OS are on this page.

Is CVE-2019-10062 being exploited?

CVE-2019-10062 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-10062 affect?

CVE-2019-10062 affects aurelia framework. Severity is medium (CVSS 6.1). The HTMLSanitizer class in html-sanitizer.ts in all released versions of the Aurelia framework 1.x repository is vulnerable to XSS. The sanitizer only attempts to filter SCRIPT elements, which makes it feasible for remote attackers to condu

How urgent is CVE-2019-10062?

Priority 45/100. Public exploit reference

References

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