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No exploitation reportedFix available

CVE-2022-21648

No exploitation reported by the sources we read.

  • Published2022-01-04
  • Fixed in2.10.8 · 2.9.6 · 2.8.8
  • WeaknessCWE-79

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Latte is an open source template engine for PHP. Versions since 2.8.0 Latte has included a template sandbox and in affected versions it has been found that a sandbox escape exists allowing for injection into web pages generated from Latte. This may lead to XSS attacks. The issue is fixed in the versions 2.8.8, 2.9.6 and 2.10.8. Users unable to upgrade should not accept template input from untrusted sources.

Timeline

dates in UTC
  1. 2022-01-0420:15CVE publishedNVD

Versions per branch

NVD · OSV
Nette latte
BranchAffectedFixed in
2.10≥ 2.10.0, < 2.10.82.10.8
2.9≥ 2.9.0, < 2.9.62.9.6
2.8≥ 2.8.0, < 2.8.82.8.8

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • php-netteUbuntu:Pro:16.04:LTSall versions · no fixed version listed
  • php-netteUbuntu:18.04:LTSall versions · no fixed version listed

Full record on NVD

Fix

  1. Update Nette latte to 2.10.8 · 2.9.6 · 2.8.8

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionnone2025-04-23
  • CNACVSS 3.18.2known since 2026-10-23
  • NVDCVSS 3.16.1read 2026-10-23
  • NVDCVSS 2.04.3read 2026-10-23
  • CNAweakness (CWE)CWE-79known since 2026-10-23
  • NVDweakness (CWE)CWE-79read 2026-10-23
  • FIRST EPSSEPSS score0.8 %2026-11-04
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryHIGH2022-01-06

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Published
2022-01-04
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-36m2-8rhx-f36j

Frequently asked questions

What is CVE-2022-21648?

Latte is an open source template engine for PHP. Versions since 2.8.0 Latte has included a template sandbox and in affected versions it has been found that a sandbox escape exists allowing for injection into web pages generated from Latte. This may lead to XSS attacks. The issue is fixed in the versions 2.8.8, 2.9.6 and 2.10.8. Users unable to upgrade should not accept template input from untrusted sources.

Is CVE-2022-21648 actively exploited?

Active exploitation of CVE-2022-21648 has not been confirmed. Its EPSS score was 0.8% on 2026-11-04, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-21648?

CVE-2022-21648 has a CVSS v3 base score of 6.1 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

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