How severe is CVE-2012-4393?

CVE-2012-4393 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2012-4393 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-4393?

CVE-2012-4393 primarily affects Owncloud. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-4393?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-4393 published?

CVE-2012-4393 was published on 2012-09-05 and last updated on 2026-06-16.

CVE-2012-4393

CVE-2012-4393 is a medium-severity vulnerability in Owncloud with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Owncloud
Published: 2012-09-05
Last modified: 2026-06-16

Description

Multiple cross-site request forgery (CSRF) vulnerabilities in ownCloud before 4.0.6 allow remote attackers to hijack the authentication of arbitrary users for requests that use (1) addBookmark.php, (2) delBookmark.php, or (3) editBookmark.php in bookmarks/ajax/; (4) calendar/delete.php, (5) calendar/edit.php, (6) calendar/new.php, (7) calendar/update.php, (8) event/delete.php, (9) event/edit.php, (10) event/move.php, (11) event/new.php, (12) import/import.php, (13) settings/setfirstday.php, (14) settings/settimeformat.php, (15) share/changepermission.php, (16) share/share.php, (17) or share/unshare.php in calendar/ajax/; (18) external/ajax/setsites.php, (19) files/ajax/delete.php, (20) files/ajax/move.php, (21) files/ajax/newfile.php, (22) files/ajax/newfolder.php, (23) files/ajax/rename.php, (24) files_sharing/ajax/email.php, (25) files_sharing/ajax/setpermissions.php, (26) files_sharing/ajax/share.php, (27) files_sharing/ajax/toggleresharing.php, (28) files_sharing/ajax/togglesharewitheveryone.php, (29) files_sharing/ajax/unshare.php, (30) files_texteditor/ajax/savefile.php, (31) files_versions/ajax/rollbackVersion.php, (32) gallery/ajax/createAlbum.php, (33) gallery/ajax/sharing.php, (34) tasks/ajax/addtask.php, (35) tasks/ajax/addtaskform.php, (36) tasks/ajax/delete.php, or (37) tasks/ajax/edittask.php in apps/; or administrators for requests that use (38) changepassword.php, (39) creategroup.php, (40) createuser.php, (41) disableapp.php, (42) enableapp.php, (43) lostpassword.php, (44) removegroup.php, (45) removeuser.php, (46) setlanguage.php, (47) setloglevel.php, (48) setquota.php, or (49) togglegroups.php in settings/ajax/.

Frequently asked questions

What is CVE-2012-4393?: Multiple cross-site request forgery (CSRF) vulnerabilities in ownCloud before 4.0.6 allow remote attackers to hijack the authentication of arbitrary users for requests that use (1) addBookmark.php, (2) delBookmark.php, or (3) editBookmark.php in bookmarks/ajax/; (4) calendar/delete.php, (5) calendar/edit.php, (6) calendar/new.php, (7) calendar/update.php, (8) event/delete.php, (9) event/edit.php, (10) event/move.php, (11) event/new.php, (12) import/import.php, (13) settings/setfirstday.php, (14) settings/settimeformat.php, (15) share/changepermission.php, (16) share/share.php, (17) or share/unshare.php in calendar/ajax/; (18) external/ajax/setsites.php, (19) files/ajax/delete.php, (20) files/ajax/move.php, (21) files/ajax/newfile.php, (22) files/ajax/newfolder.php, (23) files/ajax/rename.php, (24) files_sharing/ajax/email.php, (25) files_sharing/ajax/setpermissions.php, (26) files_sharing/ajax/share.php, (27) files_sharing/ajax/toggleresharing.php, (28) files_sharing/ajax/togglesharewitheveryone.php, (29) files_sharing/ajax/unshare.php, (30) files_texteditor/ajax/savefile.php, (31) files_versions/ajax/rollbackVersion.php, (32) gallery/ajax/createAlbum.php, (33) gallery/ajax/sharing.php, (34) tasks/ajax/addtask.php, (35) tasks/ajax/addtaskform.php, (36) tasks/ajax/delete.php, or (37) tasks/ajax/edittask.php in apps/; or administrators for requests that use (38) changepassword.php, (39) creategroup.php, (40) createuser.php, (41) disableapp.php, (42) enableapp.php, (43) lostpassword.php, (44) removegroup.php, (45) removeuser.php, (46) setlanguage.php, (47) setloglevel.php, (48) setquota.php, or (49) togglegroups.php in settings/ajax/.
How severe is CVE-2012-4393?: CVE-2012-4393 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2012-4393 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-4393?: CVE-2012-4393 primarily affects Owncloud. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-4393?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-4393 published?: CVE-2012-4393 was published on 2012-09-05 and last updated on 2026-06-16.

References

Affected products (10)

cpe:2.3:a:owncloud:owncloud:*:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:3.0.3:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.0:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.1:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.2:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.3:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:4.0.4:*:*:*:*:*:*:*

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