How many CVEs have patched sanitize_css_block?

3 published CVEs changed sanitize_css_block in roundcube/roundcubemail, in 6 distinct patches totalling 20 changed lines, between 2025 and 2026.

What is the latest CVE that changed sanitize_css_block?

CVE-2026-48846, published 2026-05-25, changed lines 644 to 654 of program/lib/Roundcube/rcube_utils.php.

How does sanitize_css_block compare to the rest of roundcube/roundcubemail?

roundcube/roundcubemail has 59 CVEs with a located fix in total; 3 of them changed sanitize_css_block.

What do the line numbers refer to?

Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

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Patched Functions
Roundcube
Roundcubemail
Sanitize_css_block

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Patched Functions
Roundcube
Roundcubemail
Sanitize_css_block

sanitize_css_block in roundcube/roundcubemail: Patched by 3 CVEs

roundcube/roundcubemail

Function

sanitize_css_block

Name: sanitize_css_block in roundcube/roundcubemail: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

program/lib/Roundcube/rcube_utils.php

Last patched May 25, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2025–2026

Years

By CVE publication date

Overview

sanitize_css_block in roundcube/roundcubemail was changed by 3 published CVE fixes between 2025 and 2026, in 6 distinct patches that added or removed 20 lines in total.

roundcube/roundcubemail has 59 CVEs with a located fix in total, so 5% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed sanitize_css_block, newest first, with the lines each fix touched.

CVE-2026-48846
CVE-2026-48846 · lines 644–654 · +11 −4
Medium · CVSS 6.5
EPSS 0.5%2026-05-25
Roundcube Webmail: Insufficient CSS sanitization in HTML e-mail messages
CVE-2026-35544 · line 561 · +1 −1
Medium · CVSS 5.3
EPSS 0.5%2026-04-03
CVE-2025-68460
CVE-2025-68460 · lines 562–564 · +3 −0
High · CVSS 7.5
EPSS 0.3%2025-12-18

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Other functions in these files

Functions in the same file that CVE fixes also changed.

1is_local_urlprogram/lib/Roundcube/rcube_utils.php4 CVEs · 9 patches2026
2mod_css_stylesprogram/lib/Roundcube/rcube_utils.php2 CVEs · 6 patches2021 to 2026
3is_simple_stringprogram/lib/Roundcube/rcube_utils.php1 CVEs · 2 patches2025
4xss_entity_decodeprogram/lib/Roundcube/rcube_utils.php1 CVEs · 2 patches2017
5parse_css_blockprogram/lib/Roundcube/rcube_utils.php1 CVEs · 1 patches2026
6remove_css_commentsprogram/lib/Roundcube/rcube_utils.php1 CVEs · 1 patches2026

Other hotspots in the repository

Functions in roundcube/roundcubemail changed by the most CVE fixes.

wash_uri5 CVEs · program/lib/Roundcube/rcube_washtml.php is_local_url4 CVEs · program/lib/Roundcube/rcube_utils.php wash_attribs4 CVEs · program/lib/Roundcube/rcube_washtml.php attribute_value4 CVEs · program/lib/Roundcube/rcube_washtml.php is_insecure_tag2 CVEs · program/lib/Roundcube/rcube_washtml.php mod_css_styles2 CVEs · program/lib/Roundcube/rcube_utils.php

All patched functions in roundcube/roundcubemail

Frequently asked questions

Common questions about CVE fixes to sanitize_css_block.

How many CVEs have patched sanitize_css_block?: 3 published CVEs changed sanitize_css_block in roundcube/roundcubemail, in 6 distinct patches totalling 20 changed lines, between 2025 and 2026.
What is the latest CVE that changed sanitize_css_block?: CVE-2026-48846, published 2026-05-25, changed lines 644 to 654 of program/lib/Roundcube/rcube_utils.php.
How does sanitize_css_block compare to the rest of roundcube/roundcubemail?: roundcube/roundcubemail has 59 CVEs with a located fix in total; 3 of them changed sanitize_css_block.
What do the line numbers refer to?: Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

References

program/lib/Roundcube/rcube_utils.php on GitHub (opens in a new tab)
All patched functions in roundcube/roundcubemail
Patched functions directory

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

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On this page

Overview
CVEs that patched it
Other functions in these files
Other hotspots in the repository
FAQ
References