CVE-2022-21648

Sandbox bypass in Latte templates

MEDIUM

6.1

CVSS Score

Published: January 4, 2022 at 08:10 PM UTC

Updated: June 17, 2026 at 04:26 AM UTC

1 product affected across 1 vendorLatte

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Severity

MEDIUM6.1

Exploit prediction

EPSS 0.8%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Latte · Nettecomposer

95%

v < 2.10.8v < 2.8.8v < 2.9.62.10.0 ≤ v < 2.10.82.8.0 ≤ v < 2.8.82.9.0 ≤ v < 2.9.6

Affected range stops below 2.10.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.8.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.9.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://github.com/nette/latte/commit/9e1b4f7d70f7a9c3fa6753ffa7d7e450a3d4abb0

References (2)

x_refsource_MISCPatchThird Party Advisory

Source: [email protected]

https://github.com/nette/latte/commit/9e1b4f7d70f7a9c3fa6753ffa7d7e450a3d4abb0

x_refsource_CONFIRMThird Party Advisory

Source: [email protected]

https://github.com/nette/latte/security/advisories/GHSA-36m2-8rhx-f36j

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: REQUIRED
Scope: CHANGED
Confidentiality: LOW
Integrity: LOW
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-79

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