CVE-2021-32608: An issue was discovered in Smartstore (aka SmartStoreNET) through 4.1.1

Q: How do I fix CVE-2021-32608?

smartstore: upgrade to newer than 4.1.1. Exact commands for each OS are on this page.

Q: Is CVE-2021-32608 being exploited?

CVE-2021-32608 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-32608 affect?

CVE-2021-32608 affects smartstore. Severity is critical (CVSS 9.8). An issue was discovered in Smartstore (aka SmartStoreNET) through 4.1.1. Views/Boards/Partials/_ForumPost.cshtml does not call HtmlUtils.SanitizeHtml on certain text for a forum post.

Q: How urgent is CVE-2021-32608?

Priority 69/100. Critical severity; EPSS top 2%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2021-32608 is a critical-severity flaw (CVSS 9.8) affecting smartstore. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in Smartstore (aka SmartStoreNET) through 4.1.1. Views/Boards/Partials/_ForumPost.cshtml does not call HtmlUtils.SanitizeHtml on certain text for a forum post.

Why this priority

Critical severity
EPSS top 2%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	33.4% (top 2%)
CISA exploited list	No
Published	2021-05-12
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: smartstore

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

Am I affected?

Timeline

2021-05-12 15:15 UTCPublished CVE record published
2026-06-17 03:53 UTCUpdated Record last modified

smartstore smartstore UPGRADE

Affected: <= 4.1.1

Fixed in: newer than 4.1.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy smartstore || rpm -q smartstore || smartstore --version

2. UPGRADE to newer than 4.1.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade smartstore

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade smartstore

Note

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

Exact fixes by distribution

Fedora 46 · root · FIXED · 6.40.04-6.fc46 · FEDORA-2026-deac340022 · source

sudo dnf upgrade --advisory=FEDORA-2026-deac340022

Fedora ELN · man-pages · FIXED · 6.20-1.eln159 · FEDORA-2026-f1f5fb11b4 · source

sudo dnf upgrade --advisory=FEDORA-2026-f1f5fb11b4

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-2021-32608?

smartstore: upgrade to newer than 4.1.1. Exact commands for each OS are on this page.

Is CVE-2021-32608 being exploited?

CVE-2021-32608 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-2021-32608 affect?

CVE-2021-32608 affects smartstore. Severity is critical (CVSS 9.8). An issue was discovered in Smartstore (aka SmartStoreNET) through 4.1.1. Views/Boards/Partials/_ForumPost.cshtml does not call HtmlUtils.SanitizeHtml on certain text for a forum post.

How urgent is CVE-2021-32608?

Priority 69/100. Critical severity; EPSS top 2%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2021-32607 CRITICAL 9.8 UPGRADE An issue was discovered in Smartstore (aka SmartStoreNET) through 4.1.1
CVE-2020-15243 CRITICAL 9.1 DOWNGRADE Affected versions of Smartstore have a missing WebApi Authentication attribute

References

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